From 8364ce697ddf6117fdd4f7222832d546d63880de Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Wed, 21 Jun 2023 13:28:49 +0200
Subject: Update

---
 .vscode/settings.json                              |   6 +
 data/csv.py                                        | 183 +++--
 data/keywords.py                                   |   8 +-
 environment.yaml                                   |  11 +-
 infer.py                                           | 124 ++--
 models/attention/control.py                        | 106 ++-
 models/attention/hook.py                           |   5 +-
 models/attention/structured.py                     |  65 +-
 models/clip/embeddings.py                          |  29 +-
 models/clip/tokenizer.py                           |  23 +-
 models/clip/util.py                                |  17 +-
 models/convnext/discriminator.py                   |  11 +-
 models/sparse.py                                   |  12 +-
 .../stable_diffusion/vlpn_stable_diffusion.py      | 262 +++++--
 train_dreambooth.py                                | 770 +++++++++++++++------
 train_lora.py                                      | 489 +++++++------
 train_ti.py                                        | 379 +++++-----
 training/functional.py                             | 221 ++++--
 training/lr.py                                     |   4 +-
 training/optimization.py                           |  38 +-
 training/sampler.py                                |   2 +-
 training/strategy/dreambooth.py                    |  29 +-
 training/strategy/lora.py                          |  41 +-
 training/strategy/ti.py                            |  27 +-
 24 files changed, 1873 insertions(+), 989 deletions(-)
 create mode 100644 .vscode/settings.json

diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..cee7b74
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,6 @@
+{
+    "[python]": {
+        "editor.defaultFormatter": "ms-python.black-formatter"
+    },
+    "python.formatting.provider": "none"
+}
diff --git a/data/csv.py b/data/csv.py
index 14380e8..d726033 100644
--- a/data/csv.py
+++ b/data/csv.py
@@ -49,7 +49,7 @@ def generate_buckets(
     max_pixels: Optional[int] = None,
     num_buckets: int = 4,
     progressive_buckets: bool = False,
-    return_tensor: bool = True
+    return_tensor: bool = True,
 ):
     if max_pixels is None:
         max_pixels = (base_size + step_size) ** 2
@@ -62,7 +62,11 @@ def generate_buckets(
 
     for i in range(1, num_buckets + 1):
         long_side = base_size + i * step_size
-        short_side = min(base_size - math.ceil((base_size - max_pixels / long_side) / step_size) * step_size, base_size)
+        short_side = min(
+            base_size
+            - math.ceil((base_size - max_pixels / long_side) / step_size) * step_size,
+            base_size,
+        )
         buckets.append(long_side / short_side)
         buckets.append(short_side / long_side)
 
@@ -106,7 +110,7 @@ def collate_fn(
     max_token_id_length: Optional[int],
     with_guidance: bool,
     with_prior_preservation: bool,
-    examples
+    examples,
 ):
     prompt_ids = [example["prompt_ids"] for example in examples]
     nprompt_ids = [example["nprompt_ids"] for example in examples]
@@ -125,7 +129,9 @@ def collate_fn(
     prompts = unify_input_ids(tokenizer, prompt_ids, max_token_id_length)
     nprompts = unify_input_ids(tokenizer, nprompt_ids, max_token_id_length)
     inputs = unify_input_ids(tokenizer, input_ids, max_token_id_length)
-    negative_inputs = unify_input_ids(tokenizer, negative_input_ids, max_token_id_length)
+    negative_inputs = unify_input_ids(
+        tokenizer, negative_input_ids, max_token_id_length
+    )
 
     batch = {
         "prompt_ids": prompts.input_ids,
@@ -149,35 +155,39 @@ class VlpnDataItem(NamedTuple):
     nprompt: str
     collection: list[str]
 
-    def full_prompt(self, dropout: float = 0, shuffle: bool = False, npgenerator: Optional[np.random.Generator] = None):
-        return keywords_to_str(self.keywords, [self.prompt], dropout, shuffle, npgenerator)
+    def full_prompt(
+        self,
+        dropout: float = 0,
+        shuffle: bool = False,
+        npgenerator: Optional[np.random.Generator] = None,
+    ):
+        return keywords_to_str(
+            self.keywords, [self.prompt], dropout, shuffle, npgenerator
+        )
 
 
 def keyword_filter(
     placeholder_tokens: Optional[list[str]],
     collections: Optional[list[str]],
     exclude_collections: Optional[list[str]],
-    item: VlpnDataItem
+    item: VlpnDataItem,
 ):
     full_prompt = item.full_prompt()
 
     cond1 = placeholder_tokens is None or any(
-        token in full_prompt
-        for token in placeholder_tokens
+        token in full_prompt for token in placeholder_tokens
     )
     cond2 = collections is None or any(
-        collection in item.collection
-        for collection in collections
+        collection in item.collection for collection in collections
     )
     cond3 = exclude_collections is None or not any(
-        collection in item.collection
-        for collection in exclude_collections
+        collection in item.collection for collection in exclude_collections
     )
 
     return cond1 and cond2 and cond3
 
 
-class VlpnDataModule():
+class VlpnDataModule:
     def __init__(
         self,
         batch_size: int,
@@ -222,7 +232,7 @@ class VlpnDataModule():
 
         self.constant_prompt_length = constant_prompt_length
         self.max_token_id_length = None
-        
+
         self.tokenizer = tokenizer
         self.size = size
         self.num_buckets = num_buckets
@@ -259,23 +269,29 @@ class VlpnDataModule():
             nprompt = prepare_tpl_slots(item["nprompt"] if "nprompt" in item else "")
             collection = item["collection"].split(", ") if "collection" in item else []
 
-            saturated_keywords = str_to_keywords(tpl_keywords.format(**keywords), expansions)
+            saturated_keywords = str_to_keywords(
+                tpl_keywords.format(**keywords), expansions
+            )
 
-            inverted_tokens = keywords_to_str([
-                f"inv_{token}"
-                for token in self.placeholder_tokens
-                if token in saturated_keywords
-            ])
+            inverted_tokens = keywords_to_str(
+                [
+                    f"inv_{token}"
+                    for token in self.placeholder_tokens
+                    if token in saturated_keywords
+                ]
+            )
 
-            items.append(VlpnDataItem(
-                self.data_root / image,
-                None,
-                saturated_keywords,
-                tpl_prompt.format(**prompt),
-                tpl_cprompt.format(**prompt),
-                tpl_nprompt.format(_inv=inverted_tokens, **nprompt),
-                collection
-            ))
+            items.append(
+                VlpnDataItem(
+                    self.data_root / image,
+                    None,
+                    saturated_keywords,
+                    tpl_prompt.format(**prompt),
+                    tpl_cprompt.format(**prompt),
+                    tpl_nprompt.format(_inv=inverted_tokens, **nprompt),
+                    collection,
+                )
+            )
 
         return items
 
@@ -285,13 +301,16 @@ class VlpnDataModule():
 
         return [item for item in items if self.filter(item)]
 
-    def pad_items(self, items: list[VlpnDataItem], num_class_images: int = 1) -> list[VlpnDataItem]:
+    def pad_items(
+        self, items: list[VlpnDataItem], num_class_images: int = 1
+    ) -> list[VlpnDataItem]:
         image_multiplier = max(num_class_images, 1)
 
         return [
             VlpnDataItem(
                 item.instance_image_path,
-                self.class_root / f"{item.instance_image_path.stem}_{i}{item.instance_image_path.suffix}",
+                self.class_root
+                / f"{item.instance_image_path.stem}_{i}{item.instance_image_path.suffix}",
                 item.keywords,
                 item.prompt,
                 item.cprompt,
@@ -303,7 +322,7 @@ class VlpnDataModule():
         ]
 
     def setup(self):
-        with open(self.data_file, 'rt') as f:
+        with open(self.data_file, "rt") as f:
             metadata = json.load(f)
         template = metadata[self.template_key] if self.template_key in metadata else {}
         expansions = metadata["expansions"] if "expansions" in metadata else {}
@@ -312,25 +331,41 @@ class VlpnDataModule():
         items = self.prepare_items(template, expansions, items)
         items = self.filter_items(items)
         self.npgenerator.shuffle(items)
-        
+
         if self.constant_prompt_length:
             all_input_ids = unify_input_ids(
                 self.tokenizer,
-                [self.tokenizer(item.full_prompt(), padding="do_not_pad").input_ids for item in items]
+                [
+                    self.tokenizer(item.full_prompt(), padding="do_not_pad").input_ids
+                    for item in items
+                ],
             ).input_ids
             self.max_token_id_length = all_input_ids.shape[1]
 
         num_images = len(items)
-        valid_set_size = min(self.valid_set_size, num_images) if self.valid_set_size is not None else num_images // 10
+        valid_set_size = (
+            min(self.valid_set_size, num_images)
+            if self.valid_set_size is not None
+            else num_images // 10
+        )
         train_set_size = max(num_images - valid_set_size, 1)
         valid_set_size = num_images - train_set_size
 
-        collate_fn_ = partial(collate_fn, self.dtype, self.tokenizer, self.max_token_id_length, self.with_guidance, self.num_class_images != 0)
+        collate_fn_ = partial(
+            collate_fn,
+            self.dtype,
+            self.tokenizer,
+            self.max_token_id_length,
+            self.with_guidance,
+            self.num_class_images != 0,
+        )
 
         if valid_set_size == 0:
             data_train, data_val = items, items
         else:
-            data_train, data_val = random_split(items, [train_set_size, valid_set_size], generator=self.generator)
+            data_train, data_val = random_split(
+                items, [train_set_size, valid_set_size], generator=self.generator
+            )
 
         data_train = self.pad_items(data_train, self.num_class_images)
 
@@ -338,17 +373,25 @@ class VlpnDataModule():
             data_train *= math.ceil(self.train_set_pad / len(data_train))
 
         self.train_dataset = VlpnDataset(
-            data_train, self.tokenizer,
-            num_buckets=self.num_buckets, progressive_buckets=self.progressive_buckets,
-            bucket_step_size=self.bucket_step_size, bucket_max_pixels=self.bucket_max_pixels,
-            batch_size=self.batch_size, fill_batch=True, generator=self.generator,
-            size=self.size, interpolation=self.interpolation, color_jitter=self.color_jitter,
-            num_class_images=self.num_class_images, dropout=self.dropout, shuffle=self.shuffle,
+            data_train,
+            self.tokenizer,
+            num_buckets=self.num_buckets,
+            progressive_buckets=self.progressive_buckets,
+            bucket_step_size=self.bucket_step_size,
+            bucket_max_pixels=self.bucket_max_pixels,
+            batch_size=self.batch_size,
+            fill_batch=True,
+            generator=self.generator,
+            size=self.size,
+            interpolation=self.interpolation,
+            color_jitter=self.color_jitter,
+            num_class_images=self.num_class_images,
+            dropout=self.dropout,
+            shuffle=self.shuffle,
         )
 
         self.train_dataloader = DataLoader(
-            self.train_dataset,
-            batch_size=None, pin_memory=True, collate_fn=collate_fn_
+            self.train_dataset, batch_size=None, pin_memory=True, collate_fn=collate_fn_
         )
 
         if len(data_val) != 0:
@@ -358,16 +401,24 @@ class VlpnDataModule():
                 data_val *= math.ceil(self.valid_set_pad / len(data_val))
 
             self.val_dataset = VlpnDataset(
-                data_val, self.tokenizer,
-                num_buckets=self.num_buckets, progressive_buckets=True,
-                bucket_step_size=self.bucket_step_size, bucket_max_pixels=self.bucket_max_pixels,
-                batch_size=self.batch_size, generator=self.generator,
-                size=self.size, interpolation=self.interpolation, color_jitter=self.color_jitter,
+                data_val,
+                self.tokenizer,
+                num_buckets=self.num_buckets,
+                progressive_buckets=True,
+                bucket_step_size=self.bucket_step_size,
+                bucket_max_pixels=self.bucket_max_pixels,
+                batch_size=self.batch_size,
+                generator=self.generator,
+                size=self.size,
+                interpolation=self.interpolation,
+                color_jitter=self.color_jitter,
             )
 
             self.val_dataloader = DataLoader(
                 self.val_dataset,
-                batch_size=None, pin_memory=True, collate_fn=collate_fn_
+                batch_size=None,
+                pin_memory=True,
+                collate_fn=collate_fn_,
             )
         else:
             self.val_dataloader = None
@@ -418,7 +469,13 @@ class VlpnDataset(IterableDataset):
 
         self.bucket_item_range = torch.arange(len(self.bucket_items))
 
-        self.length_ = (self.bucket_assignments.bincount() / self.batch_size).ceil().long().sum().item()
+        self.length_ = (
+            (self.bucket_assignments.bincount() / self.batch_size)
+            .ceil()
+            .long()
+            .sum()
+            .item()
+        )
 
     def get_input_ids(self, text: str):
         return self.tokenizer(text, padding="do_not_pad").input_ids
@@ -430,7 +487,9 @@ class VlpnDataset(IterableDataset):
         worker_info = torch.utils.data.get_worker_info()
 
         if self.shuffle:
-            perm = torch.randperm(len(self.bucket_assignments), generator=self.generator)
+            perm = torch.randperm(
+                len(self.bucket_assignments), generator=self.generator
+            )
             self.bucket_items = self.bucket_items[perm]
             self.bucket_assignments = self.bucket_assignments[perm]
 
@@ -488,7 +547,9 @@ class VlpnDataset(IterableDataset):
 
             if len(bucket_items) == 0:
                 bucket_items = self.bucket_items[self.bucket_assignments == bucket]
-                item_index = bucket_items[torch.randint(len(bucket_items), (1,), generator=self.generator)]
+                item_index = bucket_items[
+                    torch.randint(len(bucket_items), (1,), generator=self.generator)
+                ]
             else:
                 item_index = bucket_items[0]
                 mask[self.bucket_item_range[bucket_mask][0]] = False
@@ -500,12 +561,18 @@ class VlpnDataset(IterableDataset):
             example["prompt_ids"] = self.get_input_ids(item.full_prompt())
             example["nprompt_ids"] = self.get_input_ids(item.nprompt)
 
-            example["instance_prompt_ids"] = self.get_input_ids(item.full_prompt(self.dropout, True, self.npgenerator))
+            example["instance_prompt_ids"] = self.get_input_ids(
+                item.full_prompt(self.dropout, True, self.npgenerator)
+            )
             example["negative_prompt_ids"] = self.get_input_ids(item.nprompt)
-            example["instance_images"] = image_transforms(get_image(item.instance_image_path))
+            example["instance_images"] = image_transforms(
+                get_image(item.instance_image_path)
+            )
 
             if self.num_class_images != 0:
                 example["class_prompt_ids"] = self.get_input_ids(item.cprompt)
-                example["class_images"] = image_transforms(get_image(item.class_image_path))
+                example["class_images"] = image_transforms(
+                    get_image(item.class_image_path)
+                )
 
             batch.append(example)
diff --git a/data/keywords.py b/data/keywords.py
index 8632d67..83fe9ff 100644
--- a/data/keywords.py
+++ b/data/keywords.py
@@ -8,7 +8,7 @@ def keywords_to_str(
     undroppable_keywords: list[str] = [],
     dropout: float = 0,
     shuffle: bool = False,
-    npgenerator: Optional[np.random.Generator] = None
+    npgenerator: Optional[np.random.Generator] = None,
 ) -> str:
     if dropout != 0:
         keywords = [keyword for keyword in keywords if np.random.random() > dropout]
@@ -23,7 +23,11 @@ def keywords_to_str(
 
 def str_to_keywords(s: str, expansions: dict[str, str] = {}) -> list[str]:
     def expand_keyword(keyword: str) -> list[str]:
-        return [keyword] + expansions[keyword].split(", ") if keyword in expansions else [keyword]
+        return (
+            [keyword] + expansions[keyword].split(", ")
+            if keyword in expansions
+            else [keyword]
+        )
 
     return [
         kw
diff --git a/environment.yaml b/environment.yaml
index 1a55967..2c81a90 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -14,16 +14,17 @@ dependencies:
     - numpy=1.24.3
     - pip=22.3.1
     - python=3.10.8
-    - pytorch=2.0.0=*cuda11.8*
-    - torchvision=0.15.0
-    - xformers=0.0.20.dev528
+    - pytorch=2.0.1=*cuda11.8*
+    - scipy=1.10.1
+    - torchvision=0.15.2
+    - xformers=0.0.21.dev542+git.a205b24
     - pip:
           - -e .
           - -e git+https://github.com/huggingface/accelerate#egg=accelerate
           - -e git+https://github.com/huggingface/diffusers#egg=diffusers
           - -e git+https://github.com/facebookresearch/dadaptation#egg=dadaptation
           - --pre --extra-index-url https://download.hidet.org/whl hidet
-          - bitsandbytes==0.38.1
+          - bitsandbytes==0.39.1
           - lion-pytorch==0.0.7
           - peft==0.3.0
           - python-slugify>=6.1.2
@@ -31,4 +32,4 @@ dependencies:
           - setuptools==65.6.3
           - test-tube>=0.7.5
           - timm==0.9.2
-          - transformers==4.29.1
+          - transformers==4.30.1
diff --git a/infer.py b/infer.py
index 7346de9..3b3b595 100644
--- a/infer.py
+++ b/infer.py
@@ -24,7 +24,7 @@ from diffusers import (
     KDPM2DiscreteScheduler,
     KDPM2AncestralDiscreteScheduler,
     DEISMultistepScheduler,
-    UniPCMultistepScheduler
+    UniPCMultistepScheduler,
 )
 from peft import LoraConfig, LoraModel, set_peft_model_state_dict
 from safetensors.torch import load_file
@@ -61,7 +61,7 @@ default_cmds = {
     "negative_prompt": None,
     "shuffle": False,
     "image": None,
-    "image_noise": .7,
+    "image_noise": 0.7,
     "width": 768,
     "height": 768,
     "batch_size": 1,
@@ -69,7 +69,6 @@ default_cmds = {
     "steps": 30,
     "guidance_scale": 7.0,
     "sag_scale": 0,
-    "brightness_offset": 0,
     "seed": None,
     "config": None,
 }
@@ -85,9 +84,7 @@ def merge_dicts(d1, *args):
 
 
 def create_args_parser():
-    parser = argparse.ArgumentParser(
-        description="Simple example of a training script."
-    )
+    parser = argparse.ArgumentParser(description="Simple example of a training script.")
     parser.add_argument(
         "--model",
         type=str,
@@ -118,9 +115,7 @@ def create_args_parser():
 
 
 def create_cmd_parser():
-    parser = argparse.ArgumentParser(
-        description="Simple example of a training script."
-    )
+    parser = argparse.ArgumentParser(description="Simple example of a training script.")
     parser.add_argument(
         "--project",
         type=str,
@@ -130,13 +125,34 @@ def create_cmd_parser():
     parser.add_argument(
         "--scheduler",
         type=str,
-        choices=["plms", "ddim", "klms", "dpmsm", "dpmss", "euler_a", "kdpm2", "kdpm2_a", "deis", "unipc"],
+        choices=[
+            "plms",
+            "ddim",
+            "klms",
+            "dpmsm",
+            "dpmss",
+            "euler_a",
+            "kdpm2",
+            "kdpm2_a",
+            "deis",
+            "unipc",
+        ],
     )
     parser.add_argument(
         "--subscheduler",
         type=str,
         default=None,
-        choices=["plms", "ddim", "klms", "dpmsm", "dpmss", "euler_a", "kdpm2", "kdpm2_a", "deis"],
+        choices=[
+            "plms",
+            "ddim",
+            "klms",
+            "dpmsm",
+            "dpmss",
+            "euler_a",
+            "kdpm2",
+            "kdpm2_a",
+            "deis",
+        ],
     )
     parser.add_argument(
         "--template",
@@ -192,10 +208,6 @@ def create_cmd_parser():
         "--sag_scale",
         type=float,
     )
-    parser.add_argument(
-        "--brightness_offset",
-        type=float,
-    )
     parser.add_argument(
         "--seed",
         type=int,
@@ -214,7 +226,9 @@ def run_parser(parser, defaults, input=None):
 
     if args.config is not None:
         conf_args = load_config(args.config)
-        conf_args = parser.parse_known_args(namespace=argparse.Namespace(**conf_args))[0]
+        conf_args = parser.parse_known_args(namespace=argparse.Namespace(**conf_args))[
+            0
+        ]
 
     res = defaults.copy()
     for dict in [vars(conf_args), vars(args)]:
@@ -234,10 +248,12 @@ def load_embeddings_dir(pipeline, embeddings_dir):
     added_tokens, added_ids = load_embeddings_from_dir(
         pipeline.tokenizer,
         pipeline.text_encoder.text_model.embeddings,
-        Path(embeddings_dir)
+        Path(embeddings_dir),
     )
     pipeline.text_encoder.text_model.embeddings.persist()
-    print(f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}")
+    print(
+        f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}"
+    )
 
 
 def load_lora(pipeline, path):
@@ -255,9 +271,13 @@ def load_lora(pipeline, path):
         return
 
     lora_checkpoint_sd = load_file(path / tensor_files[0])
-    unet_lora_ds = {k: v for k, v in lora_checkpoint_sd.items() if "text_encoder_" not in k}
+    unet_lora_ds = {
+        k: v for k, v in lora_checkpoint_sd.items() if "text_encoder_" not in k
+    }
     text_encoder_lora_ds = {
-        k.replace("text_encoder_", ""): v for k, v in lora_checkpoint_sd.items() if "text_encoder_" in k
+        k.replace("text_encoder_", ""): v
+        for k, v in lora_checkpoint_sd.items()
+        if "text_encoder_" in k
     }
     ti_lora_ds = {
         k.replace("ti_", ""): v for k, v in lora_checkpoint_sd.items() if "ti_" in k
@@ -282,7 +302,9 @@ def load_lora(pipeline, path):
         token_embeddings=token_embeddings,
     )
     pipeline.text_encoder.text_model.embeddings.persist()
-    print(f"Added {len(added_tokens)} tokens from LoRA: {list(zip(added_tokens, added_ids))}")
+    print(
+        f"Added {len(added_tokens)} tokens from LoRA: {list(zip(added_tokens, added_ids))}"
+    )
 
     return
 
@@ -315,17 +337,25 @@ def create_scheduler(config, scheduler: str, subscheduler: Optional[str] = None)
                 solver_p=create_scheduler(config, subscheduler),
             )
     else:
-        raise ValueError(f"Unknown scheduler \"{scheduler}\"")
+        raise ValueError(f'Unknown scheduler "{scheduler}"')
 
 
 def create_pipeline(model, dtype):
     print("Loading Stable Diffusion pipeline...")
 
-    tokenizer = MultiCLIPTokenizer.from_pretrained(model, subfolder='tokenizer', torch_dtype=dtype)
-    text_encoder = CLIPTextModel.from_pretrained(model, subfolder='text_encoder', torch_dtype=dtype)
-    vae = AutoencoderKL.from_pretrained(model, subfolder='vae', torch_dtype=dtype)
-    unet = UNet2DConditionModel.from_pretrained(model, subfolder='unet', torch_dtype=dtype)
-    scheduler = DDIMScheduler.from_pretrained(model, subfolder='scheduler', torch_dtype=dtype)
+    tokenizer = MultiCLIPTokenizer.from_pretrained(
+        model, subfolder="tokenizer", torch_dtype=dtype
+    )
+    text_encoder = CLIPTextModel.from_pretrained(
+        model, subfolder="text_encoder", torch_dtype=dtype
+    )
+    vae = AutoencoderKL.from_pretrained(model, subfolder="vae", torch_dtype=dtype)
+    unet = UNet2DConditionModel.from_pretrained(
+        model, subfolder="unet", torch_dtype=dtype
+    )
+    scheduler = DDIMScheduler.from_pretrained(
+        model, subfolder="scheduler", torch_dtype=dtype
+    )
 
     patch_managed_embeddings(text_encoder)
 
@@ -347,7 +377,9 @@ def create_pipeline(model, dtype):
 
 
 def shuffle_prompts(prompts: list[str]) -> list[str]:
-    return [keywords_to_str(str_to_keywords(prompt), shuffle=True) for prompt in prompts]
+    return [
+        keywords_to_str(str_to_keywords(prompt), shuffle=True) for prompt in prompts
+    ]
 
 
 @torch.inference_mode()
@@ -386,12 +418,13 @@ def generate(output_dir: Path, pipeline, args):
     else:
         init_image = None
 
-    pipeline.scheduler = create_scheduler(pipeline.scheduler.config, args.scheduler, args.subscheduler)
+    pipeline.scheduler = create_scheduler(
+        pipeline.scheduler.config, args.scheduler, args.subscheduler
+    )
 
     for i in range(args.batch_num):
         pipeline.set_progress_bar_config(
-            desc=f"Batch {i + 1} of {args.batch_num}",
-            dynamic_ncols=True
+            desc=f"Batch {i + 1} of {args.batch_num}", dynamic_ncols=True
         )
 
         seed = args.seed + i
@@ -409,7 +442,6 @@ def generate(output_dir: Path, pipeline, args):
             generator=generator,
             image=init_image,
             strength=args.image_noise,
-            brightness_offset=args.brightness_offset,
         ).images
 
         for j, image in enumerate(images):
@@ -418,7 +450,7 @@ def generate(output_dir: Path, pipeline, args):
 
             image.save(dir / f"{basename}.png")
             image.save(dir / f"{basename}.jpg", quality=85)
-            with open(dir / f"{basename}.txt", 'w') as f:
+            with open(dir / f"{basename}.txt", "w") as f:
                 f.write(prompt[j % len(args.prompt)])
 
     if torch.cuda.is_available():
@@ -426,10 +458,12 @@ def generate(output_dir: Path, pipeline, args):
 
 
 class CmdParse(cmd.Cmd):
-    prompt = 'dream> '
+    prompt = "dream> "
     commands = []
 
-    def __init__(self, output_dir, ti_embeddings_dir, lora_embeddings_dir, pipeline, parser):
+    def __init__(
+        self, output_dir, ti_embeddings_dir, lora_embeddings_dir, pipeline, parser
+    ):
         super().__init__()
 
         self.output_dir = output_dir
@@ -447,10 +481,10 @@ class CmdParse(cmd.Cmd):
             print(str(e))
             return
 
-        if elements[0] == 'q':
+        if elements[0] == "q":
             return True
 
-        if elements[0] == 'reload_embeddings':
+        if elements[0] == "reload_embeddings":
             load_embeddings_dir(self.pipeline, self.ti_embeddings_dir)
             return
 
@@ -458,7 +492,7 @@ class CmdParse(cmd.Cmd):
             args = run_parser(self.parser, default_cmds, elements)
 
             if len(args.prompt) == 0:
-                print('Try again with a prompt!')
+                print("Try again with a prompt!")
                 return
         except SystemExit:
             traceback.print_exc()
@@ -471,7 +505,7 @@ class CmdParse(cmd.Cmd):
         try:
             generate(self.output_dir, self.pipeline, args)
         except KeyboardInterrupt:
-            print('Generation cancelled.')
+            print("Generation cancelled.")
         except Exception as e:
             traceback.print_exc()
             return
@@ -487,7 +521,9 @@ def main():
     args = run_parser(args_parser, default_args)
 
     output_dir = Path(args.output_dir)
-    dtype = {"fp32": torch.float32, "fp16": torch.float16, "bf16": torch.bfloat16}[args.precision]
+    dtype = {"fp32": torch.float32, "fp16": torch.float16, "bf16": torch.bfloat16}[
+        args.precision
+    ]
 
     pipeline = create_pipeline(args.model, dtype)
 
@@ -496,7 +532,13 @@ def main():
     # pipeline.unet.load_attn_procs(args.lora_embeddings_dir)
 
     cmd_parser = create_cmd_parser()
-    cmd_prompt = CmdParse(output_dir, args.ti_embeddings_dir, args.lora_embeddings_dir, pipeline, cmd_parser)
+    cmd_prompt = CmdParse(
+        output_dir,
+        args.ti_embeddings_dir,
+        args.lora_embeddings_dir,
+        pipeline,
+        cmd_parser,
+    )
     cmd_prompt.cmdloop()
 
 
diff --git a/models/attention/control.py b/models/attention/control.py
index 248bd9f..ec378c4 100644
--- a/models/attention/control.py
+++ b/models/attention/control.py
@@ -23,7 +23,7 @@ class AttentionControl(abc.ABC):
                 attn = self.forward(attn, is_cross, place_in_unet)
             else:
                 h = attn.shape[0]
-                attn[h // 2:] = self.forward(attn[h // 2:], is_cross, place_in_unet)
+                attn[h // 2 :] = self.forward(attn[h // 2 :], is_cross, place_in_unet)
         self.cur_att_layer += 1
         if self.cur_att_layer == self.num_att_layers + self.num_uncond_att_layers:
             self.cur_att_layer = 0
@@ -49,12 +49,18 @@ class EmptyControl(AttentionControl):
 class AttentionStore(AttentionControl):
     @staticmethod
     def get_empty_store():
-        return {"down_cross": [], "mid_cross": [], "up_cross": [],
-                "down_self": [],  "mid_self": [],  "up_self": []}
+        return {
+            "down_cross": [],
+            "mid_cross": [],
+            "up_cross": [],
+            "down_self": [],
+            "mid_self": [],
+            "up_self": [],
+        }
 
     def forward(self, attn, is_cross: bool, place_in_unet: str):
         key = f"{place_in_unet}_{'cross' if is_cross else 'self'}"
-        if attn.shape[1] <= 32 ** 2:  # avoid memory overhead
+        if attn.shape[1] <= 32**2:  # avoid memory overhead
             self.step_store[key].append(attn)
         return attn
 
@@ -68,8 +74,10 @@ class AttentionStore(AttentionControl):
         self.step_store = self.get_empty_store()
 
     def get_average_attention(self):
-        average_attention = {key: [item / self.cur_step for item in self.attention_store[key]]
-                             for key in self.attention_store}
+        average_attention = {
+            key: [item / self.cur_step for item in self.attention_store[key]]
+            for key in self.attention_store
+        }
         return average_attention
 
     def reset(self):
@@ -90,7 +98,7 @@ class AttentionControlEdit(AttentionStore, abc.ABC):
         return x_t
 
     def replace_self_attention(self, attn_base, att_replace):
-        if att_replace.shape[2] <= 16 ** 2:
+        if att_replace.shape[2] <= 16**2:
             return attn_base.unsqueeze(0).expand(att_replace.shape[0], *attn_base.shape)
         else:
             return att_replace
@@ -101,41 +109,62 @@ class AttentionControlEdit(AttentionStore, abc.ABC):
 
     def forward(self, attn, is_cross: bool, place_in_unet: str):
         super(AttentionControlEdit, self).forward(attn, is_cross, place_in_unet)
-        if is_cross or (self.num_self_replace[0] <= self.cur_step < self.num_self_replace[1]):
+        if is_cross or (
+            self.num_self_replace[0] <= self.cur_step < self.num_self_replace[1]
+        ):
             h = attn.shape[0] // (self.batch_size)
             attn = attn.reshape(self.batch_size, h, *attn.shape[1:])
             attn_base, attn_repalce = attn[0], attn[1:]
             if is_cross:
                 alpha_words = self.cross_replace_alpha[self.cur_step]
-                attn_repalce_new = self.replace_cross_attention(
-                    attn_base, attn_repalce) * alpha_words + (1 - alpha_words) * attn_repalce
+                attn_repalce_new = (
+                    self.replace_cross_attention(attn_base, attn_repalce) * alpha_words
+                    + (1 - alpha_words) * attn_repalce
+                )
                 attn[1:] = attn_repalce_new
             else:
                 attn[1:] = self.replace_self_attention(attn_base, attn_repalce)
             attn = attn.reshape(self.batch_size * h, *attn.shape[2:])
         return attn
 
-    def __init__(self, prompts, num_steps: int,
-                 cross_replace_steps: Union[float, Tuple[float, float], Dict[str, Tuple[float, float]]],
-                 self_replace_steps: Union[float, Tuple[float, float]],
-                 local_blend: Optional[LocalBlend]):
+    def __init__(
+        self,
+        prompts,
+        num_steps: int,
+        cross_replace_steps: Union[
+            float, Tuple[float, float], Dict[str, Tuple[float, float]]
+        ],
+        self_replace_steps: Union[float, Tuple[float, float]],
+        local_blend: Optional[LocalBlend],
+    ):
         super(AttentionControlEdit, self).__init__()
         self.batch_size = len(prompts)
         self.cross_replace_alpha = ptp_utils.get_time_words_attention_alpha(
-            prompts, num_steps, cross_replace_steps, tokenizer).to(device)
+            prompts, num_steps, cross_replace_steps, tokenizer
+        ).to(device)
         if type(self_replace_steps) is float:
             self_replace_steps = 0, self_replace_steps
-        self.num_self_replace = int(num_steps * self_replace_steps[0]), int(num_steps * self_replace_steps[1])
+        self.num_self_replace = int(num_steps * self_replace_steps[0]), int(
+            num_steps * self_replace_steps[1]
+        )
         self.local_blend = local_blend
 
 
 class AttentionReplace(AttentionControlEdit):
     def replace_cross_attention(self, attn_base, att_replace):
-        return torch.einsum('hpw,bwn->bhpn', attn_base, self.mapper)
-
-    def __init__(self, prompts, num_steps: int, cross_replace_steps: float, self_replace_steps: float,
-                 local_blend: Optional[LocalBlend] = None):
-        super(AttentionReplace, self).__init__(prompts, num_steps, cross_replace_steps, self_replace_steps, local_blend)
+        return torch.einsum("hpw,bwn->bhpn", attn_base, self.mapper)
+
+    def __init__(
+        self,
+        prompts,
+        num_steps: int,
+        cross_replace_steps: float,
+        self_replace_steps: float,
+        local_blend: Optional[LocalBlend] = None,
+    ):
+        super(AttentionReplace, self).__init__(
+            prompts, num_steps, cross_replace_steps, self_replace_steps, local_blend
+        )
         self.mapper = seq_aligner.get_replacement_mapper(prompts, tokenizer).to(device)
 
 
@@ -145,9 +174,17 @@ class AttentionRefine(AttentionControlEdit):
         attn_replace = attn_base_replace * self.alphas + att_replace * (1 - self.alphas)
         return attn_replace
 
-    def __init__(self, prompts, num_steps: int, cross_replace_steps: float, self_replace_steps: float,
-                 local_blend: Optional[LocalBlend] = None):
-        super(AttentionRefine, self).__init__(prompts, num_steps, cross_replace_steps, self_replace_steps, local_blend)
+    def __init__(
+        self,
+        prompts,
+        num_steps: int,
+        cross_replace_steps: float,
+        self_replace_steps: float,
+        local_blend: Optional[LocalBlend] = None,
+    ):
+        super(AttentionRefine, self).__init__(
+            prompts, num_steps, cross_replace_steps, self_replace_steps, local_blend
+        )
         self.mapper, alphas = seq_aligner.get_refinement_mapper(prompts, tokenizer)
         self.mapper, alphas = self.mapper.to(device), alphas.to(device)
         self.alphas = alphas.reshape(alphas.shape[0], 1, 1, alphas.shape[1])
@@ -156,13 +193,24 @@ class AttentionRefine(AttentionControlEdit):
 class AttentionReweight(AttentionControlEdit):
     def replace_cross_attention(self, attn_base, att_replace):
         if self.prev_controller is not None:
-            attn_base = self.prev_controller.replace_cross_attention(attn_base, att_replace)
+            attn_base = self.prev_controller.replace_cross_attention(
+                attn_base, att_replace
+            )
         attn_replace = attn_base[None, :, :, :] * self.equalizer[:, None, None, :]
         return attn_replace
 
-    def __init__(self, prompts, num_steps: int, cross_replace_steps: float, self_replace_steps: float, equalizer,
-                 local_blend: Optional[LocalBlend] = None, controller: Optional[AttentionControlEdit] = None):
-        super(AttentionReweight, self).__init__(prompts, num_steps,
-                                                cross_replace_steps, self_replace_steps, local_blend)
+    def __init__(
+        self,
+        prompts,
+        num_steps: int,
+        cross_replace_steps: float,
+        self_replace_steps: float,
+        equalizer,
+        local_blend: Optional[LocalBlend] = None,
+        controller: Optional[AttentionControlEdit] = None,
+    ):
+        super(AttentionReweight, self).__init__(
+            prompts, num_steps, cross_replace_steps, self_replace_steps, local_blend
+        )
         self.equalizer = equalizer.to(device)
         self.prev_controller = controller
diff --git a/models/attention/hook.py b/models/attention/hook.py
index 903de02..6b5fb68 100644
--- a/models/attention/hook.py
+++ b/models/attention/hook.py
@@ -3,6 +3,7 @@ import torch
 
 try:
     import xformers.ops
+
     xformers._is_functorch_available = True
     MEM_EFFICIENT_ATTN = True
 except ImportError:
@@ -42,10 +43,10 @@ def register_attention_control(model, controller):
         return forward
 
     def register_recr(net_, count, place_in_unet):
-        if net_.__class__.__name__ == 'CrossAttention':
+        if net_.__class__.__name__ == "CrossAttention":
             net_.forward = ca_forward(net_, place_in_unet)
             return count + 1
-        elif hasattr(net_, 'children'):
+        elif hasattr(net_, "children"):
             for net__ in net_.children():
                 count = register_recr(net__, count, place_in_unet)
         return count
diff --git a/models/attention/structured.py b/models/attention/structured.py
index 24d889f..5bbbc06 100644
--- a/models/attention/structured.py
+++ b/models/attention/structured.py
@@ -16,7 +16,9 @@ class StructuredAttentionControl(AttentionControl):
             if self.struct_attn:
                 out = self.struct_qkv(q, context, mask)
             else:
-                context = torch.cat([context[0], context[1]['k'][0]], dim=0)  # use key tensor for context
+                context = torch.cat(
+                    [context[0], context[1]["k"][0]], dim=0
+                )  # use key tensor for context
                 out = self.normal_qkv(q, context, mask)
         else:
             context = default(context, x)
@@ -29,11 +31,13 @@ class StructuredAttentionControl(AttentionControl):
         context: list of [uc, list of conditional context]
         """
         uc_context = context[0]
-        context_k, context_v = context[1]['k'], context[1]['v']
+        context_k, context_v = context[1]["k"], context[1]["v"]
 
         if isinstance(context_k, list) and isinstance(context_v, list):
             out = self.multi_qkv(q, uc_context, context_k, context_v, mask)
-        elif isinstance(context_k, torch.Tensor) and isinstance(context_v, torch.Tensor):
+        elif isinstance(context_k, torch.Tensor) and isinstance(
+            context_v, torch.Tensor
+        ):
             out = self.heterogeous_qkv(q, uc_context, context_k, context_v, mask)
         else:
             raise NotImplementedError
@@ -50,36 +54,45 @@ class StructuredAttentionControl(AttentionControl):
         k_c = [self.to_k(c_k) for c_k in context_k]
         v_c = [self.to_v(c_v) for c_v in context_v]
 
-        q = rearrange(q, 'b n (h d) -> (b h) n d', h=h)
+        q = rearrange(q, "b n (h d) -> (b h) n d", h=h)
 
-        k_uc = rearrange(k_uc, 'b n (h d) -> (b h) n d', h=h)
-        v_uc = rearrange(v_uc, 'b n (h d) -> (b h) n d', h=h)
+        k_uc = rearrange(k_uc, "b n (h d) -> (b h) n d", h=h)
+        v_uc = rearrange(v_uc, "b n (h d) -> (b h) n d", h=h)
 
-        k_c = [rearrange(k, 'b n (h d) -> (b h) n d', h=h) for k in k_c]  # NOTE: modification point
-        v_c = [rearrange(v, 'b n (h d) -> (b h) n d', h=h) for v in v_c]
+        k_c = [
+            rearrange(k, "b n (h d) -> (b h) n d", h=h) for k in k_c
+        ]  # NOTE: modification point
+        v_c = [rearrange(v, "b n (h d) -> (b h) n d", h=h) for v in v_c]
 
         # get composition
-        sim_uc = einsum('b i d, b j d -> b i j', q[:true_bs], k_uc) * self.scale
-        sim_c = [einsum('b i d, b j d -> b i j', q[true_bs:], k) * self.scale for k in k_c]
+        sim_uc = einsum("b i d, b j d -> b i j", q[:true_bs], k_uc) * self.scale
+        sim_c = [
+            einsum("b i d, b j d -> b i j", q[true_bs:], k) * self.scale for k in k_c
+        ]
 
         attn_uc = sim_uc.softmax(dim=-1)
         attn_c = [sim.softmax(dim=-1) for sim in sim_c]
 
         # get uc output
-        out_uc = einsum('b i j, b j d -> b i d', attn_uc, v_uc)
+        out_uc = einsum("b i j, b j d -> b i d", attn_uc, v_uc)
 
         # get c output
         if len(v_c) == 1:
             out_c_collect = []
             for attn in attn_c:
                 for v in v_c:
-                    out_c_collect.append(einsum('b i j, b j d -> b i d', attn, v))
+                    out_c_collect.append(einsum("b i j, b j d -> b i d", attn, v))
             out_c = sum(out_c_collect) / len(out_c_collect)
         else:
-            out_c = sum([einsum('b i j, b j d -> b i d', attn, v) for attn, v in zip(attn_c, v_c)]) / len(v_c)
+            out_c = sum(
+                [
+                    einsum("b i j, b j d -> b i d", attn, v)
+                    for attn, v in zip(attn_c, v_c)
+                ]
+            ) / len(v_c)
 
         out = torch.cat([out_uc, out_c], dim=0)
-        out = rearrange(out, '(b h) n d -> b n (h d)', h=h)
+        out = rearrange(out, "(b h) n d -> b n (h d)", h=h)
 
         return out
 
@@ -88,21 +101,21 @@ class StructuredAttentionControl(AttentionControl):
         k = self.to_k(context)
         v = self.to_v(context)
 
-        q, k, v = map(lambda t: rearrange(t, 'b n (h d) -> (b h) n d', h=h), (q, k, v))
+        q, k, v = map(lambda t: rearrange(t, "b n (h d) -> (b h) n d", h=h), (q, k, v))
 
-        sim = einsum('b i d, b j d -> b i j', q, k) * self.scale
+        sim = einsum("b i d, b j d -> b i j", q, k) * self.scale
 
         if exists(mask):
-            mask = rearrange(mask, 'b ... -> b (...)')
+            mask = rearrange(mask, "b ... -> b (...)")
             max_neg_value = -torch.finfo(sim.dtype).max
-            mask = repeat(mask, 'b j -> (b h) () j', h=h)
+            mask = repeat(mask, "b j -> (b h) () j", h=h)
             sim.masked_fill_(~mask, max_neg_value)
 
         # attention, what we cannot get enough of
         attn = sim.softmax(dim=-1)
 
-        out = einsum('b i j, b j d -> b i d', attn, v)
-        out = rearrange(out, '(b h) n d -> b n (h d)', h=h)
+        out = einsum("b i j, b j d -> b i d", attn, v)
+        out = rearrange(out, "(b h) n d -> b n (h d)", h=h)
 
         return out
 
@@ -111,21 +124,21 @@ class StructuredAttentionControl(AttentionControl):
         k = self.to_k(torch.cat([uc_context, context_k], dim=0))
         v = self.to_v(torch.cat([uc_context, context_v], dim=0))
 
-        q, k, v = map(lambda t: rearrange(t, 'b n (h d) -> (b h) n d', h=h), (q, k, v))
+        q, k, v = map(lambda t: rearrange(t, "b n (h d) -> (b h) n d", h=h), (q, k, v))
 
-        sim = einsum('b i d, b j d -> b i j', q, k) * self.scale
+        sim = einsum("b i d, b j d -> b i j", q, k) * self.scale
 
         if exists(mask):
-            mask = rearrange(mask, 'b ... -> b (...)')
+            mask = rearrange(mask, "b ... -> b (...)")
             max_neg_value = -torch.finfo(sim.dtype).max
-            mask = repeat(mask, 'b j -> (b h) () j', h=h)
+            mask = repeat(mask, "b j -> (b h) () j", h=h)
             sim.masked_fill_(~mask, max_neg_value)
 
         # attention, what we cannot get enough of
         attn = sim.softmax(dim=-1)
 
-        out = einsum('b i j, b j d -> b i d', attn, v)
-        out = rearrange(out, '(b h) n d -> b n (h d)', h=h)
+        out = einsum("b i j, b j d -> b i d", attn, v)
+        out = rearrange(out, "(b h) n d -> b n (h d)", h=h)
         return out
 
     def get_kv(self, context):
diff --git a/models/clip/embeddings.py b/models/clip/embeddings.py
index 7c7f2ac..8c3c6d4 100644
--- a/models/clip/embeddings.py
+++ b/models/clip/embeddings.py
@@ -14,7 +14,13 @@ from models.sparse import SparseEmbedding
 
 
 class ManagedCLIPTextEmbeddings(CLIPTextEmbeddings):
-    def __init__(self, config: CLIPTextConfig, embeddings: CLIPTextEmbeddings, alpha: int = 8, dropout: float = 0.0):
+    def __init__(
+        self,
+        config: CLIPTextConfig,
+        embeddings: CLIPTextEmbeddings,
+        alpha: int = 8,
+        dropout: float = 0.0,
+    ):
         super().__init__(config)
 
         self.position_embedding = embeddings.position_embedding
@@ -28,7 +34,9 @@ class ManagedCLIPTextEmbeddings(CLIPTextEmbeddings):
         self.token_embedding.weight = embeddings.token_embedding.weight
 
     def resize(self, size: int):
-        self.token_embedding = self.token_embedding.new_resized(size, self.initializer_factor)
+        self.token_embedding = self.token_embedding.new_resized(
+            size, self.initializer_factor
+        )
 
     def add_embed(
         self,
@@ -46,7 +54,7 @@ class ManagedCLIPTextEmbeddings(CLIPTextEmbeddings):
             initializer = [initializer]
 
         if isinstance(initializer, list):
-            initializer = (initializer * len(token_ids))[:len(token_ids)]
+            initializer = (initializer * len(token_ids))[: len(token_ids)]
 
             with torch.no_grad():
                 initializer = self.get_embed(initializer)
@@ -76,24 +84,21 @@ class ManagedCLIPTextEmbeddings(CLIPTextEmbeddings):
 
     def get_embed(self, input_ids: Union[list[int], torch.LongTensor]):
         if isinstance(input_ids, list):
-            input_ids = torch.tensor(input_ids, device=self.token_embedding.weight.device, dtype=torch.long)
+            input_ids = torch.tensor(
+                input_ids, device=self.token_embedding.weight.device, dtype=torch.long
+            )
 
         return self.token_embedding(input_ids)
 
 
 def patch_managed_embeddings(
-    text_encoder: CLIPTextModel,
-    alpha: int = 8,
-    dropout: float = 0.0
+    text_encoder: CLIPTextModel, alpha: int = 8, dropout: float = 0.0
 ) -> ManagedCLIPTextEmbeddings:
     if isinstance(text_encoder.text_model.embeddings, ManagedCLIPTextEmbeddings):
         return text_encoder.text_model.embeddings
-    
+
     text_embeddings = ManagedCLIPTextEmbeddings(
-        text_encoder.config,
-        text_encoder.text_model.embeddings,
-        alpha,
-        dropout
+        text_encoder.config, text_encoder.text_model.embeddings, alpha, dropout
     )
     text_encoder.text_model.embeddings = text_embeddings
     return text_embeddings
diff --git a/models/clip/tokenizer.py b/models/clip/tokenizer.py
index 789b525..a866641 100644
--- a/models/clip/tokenizer.py
+++ b/models/clip/tokenizer.py
@@ -91,18 +91,21 @@ class MultiCLIPTokenizer(CLIPTokenizer):
             self.vector_shuffle = shuffle_none
 
     def add_multi_tokens(
-        self,
-        new_tokens: Union[str, list[str]],
-        num_vectors: Union[int, list[int]] = 1
+        self, new_tokens: Union[str, list[str]], num_vectors: Union[int, list[int]] = 1
     ) -> Union[list[int], list[list[int]]]:
         if isinstance(new_tokens, list):
             if isinstance(num_vectors, int):
                 num_vectors = [num_vectors] * len(new_tokens)
 
             if len(num_vectors) != len(new_tokens):
-                raise ValueError("Expected new_tokens and num_vectors to have the same len")
+                raise ValueError(
+                    "Expected new_tokens and num_vectors to have the same len"
+                )
 
-            return [self.add_multi_tokens(new_token, vecs) for new_token, vecs in zip(new_tokens, num_vectors)]
+            return [
+                self.add_multi_tokens(new_token, vecs)
+                for new_token, vecs in zip(new_tokens, num_vectors)
+            ]
 
         if isinstance(num_vectors, list):
             raise ValueError("Expected num_vectors to be int for single token")
@@ -129,13 +132,11 @@ class MultiCLIPTokenizer(CLIPTokenizer):
             return [id]
 
     def expand_ids(self, ids: list[int]):
-        return [
-            new_id
-            for id in ids
-            for new_id in self.expand_id(id)
-        ]
+        return [new_id for id in ids for new_id in self.expand_id(id)]
 
-    def expand_batched_ids(self, input_ids: Union[list[int], list[list[int]], tuple[list[int]]]):
+    def expand_batched_ids(
+        self, input_ids: Union[list[int], list[list[int]], tuple[list[int]]]
+    ):
         if isinstance(input_ids, (list, tuple)) and isinstance(input_ids[0], list):
             return [self.expand_ids(batch) for batch in input_ids]
         else:
diff --git a/models/clip/util.py b/models/clip/util.py
index f94fbc7..7196bb6 100644
--- a/models/clip/util.py
+++ b/models/clip/util.py
@@ -5,27 +5,32 @@ import torch
 from transformers import CLIPTokenizer, CLIPTextModel
 
 
-def unify_input_ids(tokenizer: CLIPTokenizer, input_ids: list[list[int]], max_length: Optional[int] = None):
+def unify_input_ids(
+    tokenizer: CLIPTokenizer,
+    input_ids: list[list[int]],
+    max_length: Optional[int] = None,
+):
     if max_length is None:
         return tokenizer.pad(
             {"input_ids": input_ids},
             padding=True,
             pad_to_multiple_of=tokenizer.model_max_length,
-            return_tensors="pt"
+            return_tensors="pt",
         )
     else:
         return tokenizer.pad(
             {"input_ids": input_ids},
             padding="max_length",
             max_length=max_length,
-            return_tensors="pt"
+            return_tensors="pt",
         )
 
+
 def get_extended_embeddings(
     text_encoder: CLIPTextModel,
     input_ids: torch.LongTensor,
     position_ids: Optional[torch.LongTensor] = None,
-    attention_mask=None
+    attention_mask=None,
 ):
     model_max_length = text_encoder.config.max_position_embeddings
     prompts = input_ids.shape[0]
@@ -36,6 +41,8 @@ def get_extended_embeddings(
     if attention_mask is not None:
         attention_mask = attention_mask.view((-1, model_max_length))
 
-    text_embeddings = text_encoder(input_ids, position_ids=position_ids, attention_mask=attention_mask)[0]
+    text_embeddings = text_encoder(
+        input_ids, position_ids=position_ids, attention_mask=attention_mask
+    )[0]
     text_embeddings = text_embeddings.view((prompts, -1, text_embeddings.shape[2]))
     return text_embeddings
diff --git a/models/convnext/discriminator.py b/models/convnext/discriminator.py
index 571b915..5798bcf 100644
--- a/models/convnext/discriminator.py
+++ b/models/convnext/discriminator.py
@@ -5,7 +5,7 @@ from timm.data.constants import IMAGENET_DEFAULT_MEAN, IMAGENET_DEFAULT_STD
 from torch.nn import functional as F
 
 
-class ConvNeXtDiscriminator():
+class ConvNeXtDiscriminator:
     def __init__(self, model: ConvNeXt, input_size: int) -> None:
         self.net = model
 
@@ -22,8 +22,13 @@ class ConvNeXtDiscriminator():
         img_mean = self.img_mean.to(device=img.device, dtype=img.dtype)
         img_std = self.img_std.to(device=img.device, dtype=img.dtype)
 
-        img = ((img + 1.) / 2.).sub(img_mean).div(img_std)
+        img = ((img + 1.0) / 2.0).sub(img_mean).div(img_std)
 
-        img = F.interpolate(img, size=(self.input_size, self.input_size), mode='bicubic', align_corners=True)
+        img = F.interpolate(
+            img,
+            size=(self.input_size, self.input_size),
+            mode="bicubic",
+            align_corners=True,
+        )
         pred = self.net(img)
         return pred
diff --git a/models/sparse.py b/models/sparse.py
index bd45696..e5897c9 100644
--- a/models/sparse.py
+++ b/models/sparse.py
@@ -15,21 +15,25 @@ class SparseEmbedding(nn.Embedding):
     ):
         nn.Embedding.__init__(self, num_embeddings, embedding_dim, **kwargs)
 
-        self.register_buffer('trainable_ids', self.weight.new_zeros(num_embeddings, dtype=torch.long) - 1)
+        self.register_buffer(
+            "trainable_ids", self.weight.new_zeros(num_embeddings, dtype=torch.long) - 1
+        )
 
         self.trainable = nn.ParameterList()
         self.scaling = alpha
         self.dropout_p = dropout
         self.weight.requires_grad = False
 
-        if dropout > 0.:
+        if dropout > 0.0:
             self.dropout = nn.Dropout(p=dropout)
         else:
             self.dropout = nn.Identity()
 
         self.reset_parameters()
 
-    def new_resized(self, new_num_embeddings: int, initializer_factor: Optional[float] = None):
+    def new_resized(
+        self, new_num_embeddings: int, initializer_factor: Optional[float] = None
+    ):
         n = min(self.num_embeddings, new_num_embeddings)
 
         new_emb = SparseEmbedding(
@@ -38,7 +42,7 @@ class SparseEmbedding(nn.Embedding):
             self.scaling,
             self.dropout_p,
             device=self.weight.device,
-            dtype=self.weight.dtype
+            dtype=self.weight.dtype,
         )
         if initializer_factor is not None:
             new_emb.weight.data.normal_(mean=0.0, std=initializer_factor * 0.02)
diff --git a/pipelines/stable_diffusion/vlpn_stable_diffusion.py b/pipelines/stable_diffusion/vlpn_stable_diffusion.py
index aa446ec..16b8456 100644
--- a/pipelines/stable_diffusion/vlpn_stable_diffusion.py
+++ b/pipelines/stable_diffusion/vlpn_stable_diffusion.py
@@ -21,7 +21,9 @@ from diffusers import (
     LMSDiscreteScheduler,
     PNDMScheduler,
 )
-from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion import StableDiffusionPipelineOutput
+from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion import (
+    StableDiffusionPipelineOutput,
+)
 from diffusers.utils import logging, randn_tensor
 from transformers import CLIPTextModel, CLIPTokenizer
 
@@ -62,13 +64,35 @@ def gaussian_blur_2d(img, kernel_size, sigma):
     return img
 
 
+def rescale_noise_cfg(noise_cfg, noise_pred_text, guidance_rescale=0.0):
+    """
+    Rescale `noise_cfg` according to `guidance_rescale`. Based on findings of [Common Diffusion Noise Schedules and
+    Sample Steps are Flawed](https://arxiv.org/pdf/2305.08891.pdf). See Section 3.4
+    """
+    std_text = noise_pred_text.std(
+        dim=list(range(1, noise_pred_text.ndim)), keepdim=True
+    )
+    std_cfg = noise_cfg.std(dim=list(range(1, noise_cfg.ndim)), keepdim=True)
+    # rescale the results from guidance (fixes overexposure)
+    noise_pred_rescaled = noise_cfg * (std_text / std_cfg)
+    # mix with the original results from guidance by factor guidance_rescale to avoid "plain looking" images
+    noise_cfg = (
+        guidance_rescale * noise_pred_rescaled + (1 - guidance_rescale) * noise_cfg
+    )
+    return noise_cfg
+
+
 class CrossAttnStoreProcessor:
     def __init__(self):
         self.attention_probs = None
 
-    def __call__(self, attn, hidden_states, encoder_hidden_states=None, attention_mask=None):
+    def __call__(
+        self, attn, hidden_states, encoder_hidden_states=None, attention_mask=None
+    ):
         batch_size, sequence_length, _ = hidden_states.shape
-        attention_mask = attn.prepare_attention_mask(attention_mask, sequence_length, batch_size)
+        attention_mask = attn.prepare_attention_mask(
+            attention_mask, sequence_length, batch_size
+        )
         query = attn.to_q(hidden_states)
 
         if encoder_hidden_states is None:
@@ -113,7 +137,10 @@ class VlpnStableDiffusion(DiffusionPipeline):
     ):
         super().__init__()
 
-        if hasattr(scheduler.config, "steps_offset") and scheduler.config.steps_offset != 1:
+        if (
+            hasattr(scheduler.config, "steps_offset")
+            and scheduler.config.steps_offset != 1
+        ):
             warnings.warn(
                 f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`"
                 f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure "
@@ -179,7 +206,12 @@ class VlpnStableDiffusion(DiffusionPipeline):
 
         device = torch.device("cuda")
 
-        for cpu_offloaded_model in [self.unet, self.text_encoder, self.vae, self.safety_checker]:
+        for cpu_offloaded_model in [
+            self.unet,
+            self.text_encoder,
+            self.vae,
+            self.safety_checker,
+        ]:
             if cpu_offloaded_model is not None:
                 cpu_offload(cpu_offloaded_model, device)
 
@@ -223,35 +255,47 @@ class VlpnStableDiffusion(DiffusionPipeline):
         width: int,
         height: int,
         strength: float,
-        callback_steps: Optional[int]
+        callback_steps: Optional[int],
     ):
-        if isinstance(prompt, str) or (isinstance(prompt, list) and isinstance(prompt[0], int)):
+        if isinstance(prompt, str) or (
+            isinstance(prompt, list) and isinstance(prompt[0], int)
+        ):
             prompt = [prompt]
 
         if negative_prompt is None:
             negative_prompt = ""
 
-        if isinstance(negative_prompt, str) or (isinstance(negative_prompt, list) and isinstance(negative_prompt[0], int)):
+        if isinstance(negative_prompt, str) or (
+            isinstance(negative_prompt, list) and isinstance(negative_prompt[0], int)
+        ):
             negative_prompt = [negative_prompt] * len(prompt)
 
         if not isinstance(prompt, list):
-            raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}")
+            raise ValueError(
+                f"`prompt` has to be of type `str` or `list` but is {type(prompt)}"
+            )
 
         if not isinstance(negative_prompt, list):
-            raise ValueError(f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}")
+            raise ValueError(
+                f"`negative_prompt` has to be of type `str` or `list` but is {type(negative_prompt)}"
+            )
 
         if len(negative_prompt) != len(prompt):
             raise ValueError(
-                f"`prompt` and `negative_prompt` have to be the same length, but are {len(prompt)} and {len(negative_prompt)}")
+                f"`prompt` and `negative_prompt` have to be the same length, but are {len(prompt)} and {len(negative_prompt)}"
+            )
 
         if strength < 0 or strength > 1:
             raise ValueError(f"`strength` should in [0.0, 1.0] but is {strength}")
 
         if height % 8 != 0 or width % 8 != 0:
-            raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.")
+            raise ValueError(
+                f"`height` and `width` have to be divisible by 8 but are {height} and {width}."
+            )
 
         if (callback_steps is None) or (
-            callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0)
+            callback_steps is not None
+            and (not isinstance(callback_steps, int) or callback_steps <= 0)
         ):
             raise ValueError(
                 f"`callback_steps` has to be a positive integer but is {callback_steps} of type"
@@ -266,7 +310,7 @@ class VlpnStableDiffusion(DiffusionPipeline):
         negative_prompt: Union[List[str], List[List[int]]],
         num_images_per_prompt: int,
         do_classifier_free_guidance: bool,
-        device
+        device,
     ):
         if isinstance(prompt[0], str):
             text_input_ids = self.tokenizer(prompt, padding="do_not_pad").input_ids
@@ -277,7 +321,9 @@ class VlpnStableDiffusion(DiffusionPipeline):
 
         if do_classifier_free_guidance:
             if isinstance(prompt[0], str):
-                unconditional_input_ids = self.tokenizer(negative_prompt, padding="do_not_pad").input_ids
+                unconditional_input_ids = self.tokenizer(
+                    negative_prompt, padding="do_not_pad"
+                ).input_ids
             else:
                 unconditional_input_ids = negative_prompt
             unconditional_input_ids *= num_images_per_prompt
@@ -286,12 +332,17 @@ class VlpnStableDiffusion(DiffusionPipeline):
         text_inputs = unify_input_ids(self.tokenizer, text_input_ids)
         text_input_ids = text_inputs.input_ids
 
-        if hasattr(self.text_encoder.config, "use_attention_mask") and self.text_encoder.config.use_attention_mask:
+        if (
+            hasattr(self.text_encoder.config, "use_attention_mask")
+            and self.text_encoder.config.use_attention_mask
+        ):
             attention_mask = text_inputs.attention_mask.to(device)
         else:
             attention_mask = None
 
-        prompt_embeds = get_extended_embeddings(self.text_encoder, text_input_ids.to(device), attention_mask)
+        prompt_embeds = get_extended_embeddings(
+            self.text_encoder, text_input_ids.to(device), attention_mask
+        )
         prompt_embeds = prompt_embeds.to(dtype=self.text_encoder.dtype, device=device)
 
         return prompt_embeds
@@ -301,25 +352,21 @@ class VlpnStableDiffusion(DiffusionPipeline):
         init_timestep = min(int(num_inference_steps * strength), num_inference_steps)
 
         t_start = max(num_inference_steps - init_timestep, 0)
-        timesteps = self.scheduler.timesteps[t_start * self.scheduler.order:]
+        timesteps = self.scheduler.timesteps[t_start * self.scheduler.order :]
 
         timesteps = timesteps.to(device)
 
         return timesteps, num_inference_steps - t_start
 
-    def prepare_brightness_offset(self, batch_size, height, width, dtype, device, generator=None):
-        offset_image = perlin_noise(
-            (batch_size, 1, width, height),
-            res=1,
-            generator=generator,
-            dtype=dtype,
-            device=device
-        )
-        offset_latents = self.vae.encode(offset_image).latent_dist.sample(generator=generator)
-        offset_latents = self.vae.config.scaling_factor * offset_latents
-        return offset_latents
-
-    def prepare_latents_from_image(self, init_image, timestep, batch_size, brightness_offset, dtype, device, generator=None):
+    def prepare_latents_from_image(
+        self,
+        init_image,
+        timestep,
+        batch_size,
+        dtype,
+        device,
+        generator=None,
+    ):
         init_image = init_image.to(device=device, dtype=dtype)
         latents = self.vae.encode(init_image).latent_dist.sample(generator=generator)
         latents = self.vae.config.scaling_factor * latents
@@ -333,20 +380,32 @@ class VlpnStableDiffusion(DiffusionPipeline):
             latents = torch.cat([latents] * batch_multiplier, dim=0)
 
         # add noise to latents using the timesteps
-        noise = torch.randn(latents.shape, generator=generator, device=device, dtype=dtype)
-
-        if brightness_offset != 0:
-            noise += brightness_offset * self.prepare_brightness_offset(
-                batch_size, init_image.shape[3], init_image.shape[2], dtype, device, generator
-            )
+        noise = torch.randn(
+            latents.shape, generator=generator, device=device, dtype=dtype
+        )
 
         # get latents
         latents = self.scheduler.add_noise(latents, noise, timestep)
 
         return latents
 
-    def prepare_latents(self, batch_size, num_channels_latents, height, width, brightness_offset, dtype, device, generator, latents=None):
-        shape = (batch_size, num_channels_latents, height // self.vae_scale_factor, width // self.vae_scale_factor)
+    def prepare_latents(
+        self,
+        batch_size,
+        num_channels_latents,
+        height,
+        width,
+        dtype,
+        device,
+        generator,
+        latents=None,
+    ):
+        shape = (
+            batch_size,
+            num_channels_latents,
+            height // self.vae_scale_factor,
+            width // self.vae_scale_factor,
+        )
         if isinstance(generator, list) and len(generator) != batch_size:
             raise ValueError(
                 f"You have passed a list of generators of length {len(generator)}, but requested an effective batch"
@@ -354,15 +413,12 @@ class VlpnStableDiffusion(DiffusionPipeline):
             )
 
         if latents is None:
-            latents = randn_tensor(shape, generator=generator, device=device, dtype=dtype)
+            latents = randn_tensor(
+                shape, generator=generator, device=device, dtype=dtype
+            )
         else:
             latents = latents.to(device)
 
-        if brightness_offset != 0:
-            latents += brightness_offset * self.prepare_brightness_offset(
-                batch_size, height, width, dtype, device, generator
-            )
-
         # scale the initial noise by the standard deviation required by the scheduler
         latents = latents * self.scheduler.init_noise_sigma
         return latents
@@ -373,13 +429,17 @@ class VlpnStableDiffusion(DiffusionPipeline):
         # eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502
         # and should be between [0, 1]
 
-        accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys())
+        accepts_eta = "eta" in set(
+            inspect.signature(self.scheduler.step).parameters.keys()
+        )
         extra_step_kwargs = {}
         if accepts_eta:
             extra_step_kwargs["eta"] = eta
 
         # check if the scheduler accepts generator
-        accepts_generator = "generator" in set(inspect.signature(self.scheduler.step).parameters.keys())
+        accepts_generator = "generator" in set(
+            inspect.signature(self.scheduler.step).parameters.keys()
+        )
         if accepts_generator:
             extra_step_kwargs["generator"] = generator
         return extra_step_kwargs
@@ -396,7 +456,9 @@ class VlpnStableDiffusion(DiffusionPipeline):
     def __call__(
         self,
         prompt: Union[str, List[str], List[int], List[List[int]]],
-        negative_prompt: Optional[Union[str, List[str], List[int], List[List[int]]]] = None,
+        negative_prompt: Optional[
+            Union[str, List[str], List[int], List[List[int]]]
+        ] = None,
         num_images_per_prompt: int = 1,
         strength: float = 1.0,
         height: Optional[int] = None,
@@ -407,12 +469,12 @@ class VlpnStableDiffusion(DiffusionPipeline):
         eta: float = 0.0,
         generator: Optional[Union[torch.Generator, List[torch.Generator]]] = None,
         image: Optional[Union[torch.FloatTensor, PIL.Image.Image]] = None,
-        brightness_offset: Union[float, torch.FloatTensor] = 0,
         output_type: str = "pil",
         return_dict: bool = True,
         callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None,
         callback_steps: int = 1,
         cross_attention_kwargs: Optional[Dict[str, Any]] = None,
+        guidance_rescale: float = 0.0,
     ):
         r"""
         Function invoked when calling the pipeline for generation.
@@ -472,7 +534,9 @@ class VlpnStableDiffusion(DiffusionPipeline):
         width = width or self.unet.config.sample_size * self.vae_scale_factor
 
         # 1. Check inputs. Raise error if not correct
-        prompt, negative_prompt = self.check_inputs(prompt, negative_prompt, width, height, strength, callback_steps)
+        prompt, negative_prompt = self.check_inputs(
+            prompt, negative_prompt, width, height, strength, callback_steps
+        )
 
         # 2. Define call parameters
         batch_size = len(prompt)
@@ -488,7 +552,7 @@ class VlpnStableDiffusion(DiffusionPipeline):
             negative_prompt,
             num_images_per_prompt,
             do_classifier_free_guidance,
-            device
+            device,
         )
 
         # 4. Prepare latent variables
@@ -497,7 +561,9 @@ class VlpnStableDiffusion(DiffusionPipeline):
 
         # 5. Prepare timesteps
         self.scheduler.set_timesteps(num_inference_steps, device=device)
-        timesteps, num_inference_steps = self.get_timesteps(num_inference_steps, strength, device)
+        timesteps, num_inference_steps = self.get_timesteps(
+            num_inference_steps, strength, device
+        )
         latent_timestep = timesteps[:1].repeat(batch_size * num_images_per_prompt)
 
         # 6. Prepare latent variables
@@ -506,7 +572,6 @@ class VlpnStableDiffusion(DiffusionPipeline):
                 image,
                 latent_timestep,
                 batch_size * num_images_per_prompt,
-                brightness_offset,
                 prompt_embeds.dtype,
                 device,
                 generator,
@@ -517,7 +582,6 @@ class VlpnStableDiffusion(DiffusionPipeline):
                 num_channels_latents,
                 height,
                 width,
-                brightness_offset,
                 prompt_embeds.dtype,
                 device,
                 generator,
@@ -530,14 +594,20 @@ class VlpnStableDiffusion(DiffusionPipeline):
         # 8. Denoising loo
         if do_self_attention_guidance:
             store_processor = CrossAttnStoreProcessor()
-            self.unet.mid_block.attentions[0].transformer_blocks[0].attn1.processor = store_processor
+            self.unet.mid_block.attentions[0].transformer_blocks[
+                0
+            ].attn1.processor = store_processor
 
         num_warmup_steps = len(timesteps) - num_inference_steps * self.scheduler.order
         with self.progress_bar(total=num_inference_steps) as progress_bar:
             for i, t in enumerate(timesteps):
                 # expand the latents if we are doing classifier free guidance
-                latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents
-                latent_model_input = self.scheduler.scale_model_input(latent_model_input, t)
+                latent_model_input = (
+                    torch.cat([latents] * 2) if do_classifier_free_guidance else latents
+                )
+                latent_model_input = self.scheduler.scale_model_input(
+                    latent_model_input, t
+                )
 
                 # predict the noise residual
                 noise_pred = self.unet(
@@ -551,7 +621,12 @@ class VlpnStableDiffusion(DiffusionPipeline):
                 # perform guidance
                 if do_classifier_free_guidance:
                     noise_pred_uncond, noise_pred_text = noise_pred.chunk(2)
-                    noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond)
+                    noise_pred = noise_pred_uncond + guidance_scale * (
+                        noise_pred_text - noise_pred_uncond
+                    )
+                    noise_pred = rescale_noise_cfg(
+                        noise_pred, noise_pred_text, guidance_rescale=guidance_rescale
+                    )
 
                 if do_self_attention_guidance:
                     # classifier-free guidance produces two chunks of attention map
@@ -561,15 +636,24 @@ class VlpnStableDiffusion(DiffusionPipeline):
                         # DDIM-like prediction of x0
                         pred_x0 = self.pred_x0(latents, noise_pred_uncond, t)
                         # get the stored attention maps
-                        uncond_attn, cond_attn = store_processor.attention_probs.chunk(2)
+                        uncond_attn, cond_attn = store_processor.attention_probs.chunk(
+                            2
+                        )
                         # self-attention-based degrading of latents
                         degraded_latents = self.sag_masking(
-                            pred_x0, uncond_attn, t, self.pred_epsilon(latents, noise_pred_uncond, t)
+                            pred_x0,
+                            uncond_attn,
+                            t,
+                            self.pred_epsilon(latents, noise_pred_uncond, t),
                         )
                         uncond_emb, _ = prompt_embeds.chunk(2)
                         # forward and give guidance
                         degraded_pred = self.unet(
-                            degraded_latents, t, encoder_hidden_states=uncond_emb, return_dict=False)[0]
+                            degraded_latents,
+                            t,
+                            encoder_hidden_states=uncond_emb,
+                            return_dict=False,
+                        )[0]
                         noise_pred += sag_scale * (noise_pred_uncond - degraded_pred)
                     else:
                         # DDIM-like prediction of x0
@@ -578,18 +662,29 @@ class VlpnStableDiffusion(DiffusionPipeline):
                         cond_attn = store_processor.attention_probs
                         # self-attention-based degrading of latents
                         degraded_latents = self.sag_masking(
-                            pred_x0, cond_attn, t, self.pred_epsilon(latents, noise_pred, t)
+                            pred_x0,
+                            cond_attn,
+                            t,
+                            self.pred_epsilon(latents, noise_pred, t),
                         )
                         # forward and give guidance
                         degraded_pred = self.unet(
-                            degraded_latents, t, encoder_hidden_states=prompt_embeds, return_dict=False)[0]
+                            degraded_latents,
+                            t,
+                            encoder_hidden_states=prompt_embeds,
+                            return_dict=False,
+                        )[0]
                         noise_pred += sag_scale * (noise_pred - degraded_pred)
 
                 # compute the previous noisy sample x_t -> x_t-1
-                latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs, return_dict=False)[0]
+                latents = self.scheduler.step(
+                    noise_pred, t, latents, **extra_step_kwargs, return_dict=False
+                )[0]
 
                 # call the callback, if provided
-                if i == len(timesteps) - 1 or ((i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0):
+                if i == len(timesteps) - 1 or (
+                    (i + 1) > num_warmup_steps and (i + 1) % self.scheduler.order == 0
+                ):
                     progress_bar.update()
                     if callback is not None and i % callback_steps == 0:
                         callback(i, t, latents)
@@ -615,7 +710,9 @@ class VlpnStableDiffusion(DiffusionPipeline):
         if not return_dict:
             return (image, has_nsfw_concept)
 
-        return StableDiffusionPipelineOutput(images=image, nsfw_content_detected=has_nsfw_concept)
+        return StableDiffusionPipelineOutput(
+            images=image, nsfw_content_detected=has_nsfw_concept
+        )
 
     # Self-Attention-Guided (SAG) Stable Diffusion
 
@@ -632,16 +729,23 @@ class VlpnStableDiffusion(DiffusionPipeline):
         attn_map = attn_map.reshape(b, h, hw1, hw2)
         attn_mask = attn_map.mean(1, keepdim=False).sum(1, keepdim=False) > 1.0
         attn_mask = (
-            attn_mask.reshape(b, map_size, map_size).unsqueeze(1).repeat(1, latent_channel, 1, 1).type(attn_map.dtype)
+            attn_mask.reshape(b, map_size, map_size)
+            .unsqueeze(1)
+            .repeat(1, latent_channel, 1, 1)
+            .type(attn_map.dtype)
         )
         attn_mask = torch.nn.functional.interpolate(attn_mask, (latent_h, latent_w))
 
         # Blur according to the self-attention mask
         degraded_latents = gaussian_blur_2d(original_latents, kernel_size=9, sigma=1.0)
-        degraded_latents = degraded_latents * attn_mask + original_latents * (1 - attn_mask)
+        degraded_latents = degraded_latents * attn_mask + original_latents * (
+            1 - attn_mask
+        )
 
         # Noise it again to match the noise level
-        degraded_latents = self.scheduler.add_noise(degraded_latents, noise=eps, timesteps=t)
+        degraded_latents = self.scheduler.add_noise(
+            degraded_latents, noise=eps, timesteps=t
+        )
 
         return degraded_latents
 
@@ -652,13 +756,19 @@ class VlpnStableDiffusion(DiffusionPipeline):
 
         beta_prod_t = 1 - alpha_prod_t
         if self.scheduler.config.prediction_type == "epsilon":
-            pred_original_sample = (sample - beta_prod_t ** (0.5) * model_output) / alpha_prod_t ** (0.5)
+            pred_original_sample = (
+                sample - beta_prod_t ** (0.5) * model_output
+            ) / alpha_prod_t ** (0.5)
         elif self.scheduler.config.prediction_type == "sample":
             pred_original_sample = model_output
         elif self.scheduler.config.prediction_type == "v_prediction":
-            pred_original_sample = (alpha_prod_t**0.5) * sample - (beta_prod_t**0.5) * model_output
+            pred_original_sample = (alpha_prod_t**0.5) * sample - (
+                beta_prod_t**0.5
+            ) * model_output
             # predict V
-            model_output = (alpha_prod_t**0.5) * model_output + (beta_prod_t**0.5) * sample
+            model_output = (alpha_prod_t**0.5) * model_output + (
+                beta_prod_t**0.5
+            ) * sample
         else:
             raise ValueError(
                 f"prediction_type given as {self.scheduler.config.prediction_type} must be one of `epsilon`, `sample`,"
@@ -674,9 +784,13 @@ class VlpnStableDiffusion(DiffusionPipeline):
         if self.scheduler.config.prediction_type == "epsilon":
             pred_eps = model_output
         elif self.scheduler.config.prediction_type == "sample":
-            pred_eps = (sample - (alpha_prod_t**0.5) * model_output) / (beta_prod_t**0.5)
+            pred_eps = (sample - (alpha_prod_t**0.5) * model_output) / (
+                beta_prod_t**0.5
+            )
         elif self.scheduler.config.prediction_type == "v_prediction":
-            pred_eps = (beta_prod_t**0.5) * sample + (alpha_prod_t**0.5) * model_output
+            pred_eps = (beta_prod_t**0.5) * sample + (
+                alpha_prod_t**0.5
+            ) * model_output
         else:
             raise ValueError(
                 f"prediction_type given as {self.scheduler.config.prediction_type} must be one of `epsilon`, `sample`,"
diff --git a/train_dreambooth.py b/train_dreambooth.py
index 2aca1e7..659b84c 100644
--- a/train_dreambooth.py
+++ b/train_dreambooth.py
@@ -5,34 +5,70 @@ import itertools
 from pathlib import Path
 from functools import partial
 import math
+import warnings
 
 import torch
+import torch._dynamo
 import torch.utils.checkpoint
+import hidet
 
 from accelerate import Accelerator
 from accelerate.logging import get_logger
 from accelerate.utils import LoggerType, set_seed
-from slugify import slugify
+
+# from diffusers.models.attention_processor import AttnProcessor
+from diffusers.utils.import_utils import is_xformers_available
 import transformers
 
-from util.files import load_config, load_embeddings_from_dir
+import numpy as np
+from slugify import slugify
+
 from data.csv import VlpnDataModule, keyword_filter
-from training.functional import train, get_models
+from models.clip.embeddings import patch_managed_embeddings
+from training.functional import train, add_placeholder_tokens, get_models
 from training.strategy.dreambooth import dreambooth_strategy
 from training.optimization import get_scheduler
-from training.util import save_args
+from training.sampler import create_named_schedule_sampler
+from training.util import AverageMeter, save_args
+from util.files import load_config, load_embeddings_from_dir
+
 
 logger = get_logger(__name__)
 
+warnings.filterwarnings("ignore")
+
 
 torch.backends.cuda.matmul.allow_tf32 = True
 torch.backends.cudnn.benchmark = True
 
+# torch._dynamo.config.log_level = logging.WARNING
+torch._dynamo.config.suppress_errors = True
+
+hidet.torch.dynamo_config.use_tensor_core(True)
+hidet.torch.dynamo_config.search_space(0)
+
+
+def patch_xformers(dtype):
+    if is_xformers_available():
+        import xformers
+        import xformers.ops
+
+        orig_xformers_memory_efficient_attention = (
+            xformers.ops.memory_efficient_attention
+        )
+
+        def xformers_memory_efficient_attention(
+            query: torch.Tensor, key: torch.Tensor, value: torch.Tensor, **kwargs
+        ):
+            return orig_xformers_memory_efficient_attention(
+                query.to(dtype), key.to(dtype), value.to(dtype), **kwargs
+            )
+
+        xformers.ops.memory_efficient_attention = xformers_memory_efficient_attention
+
 
 def parse_args():
-    parser = argparse.ArgumentParser(
-        description="Simple example of a training script."
-    )
+    parser = argparse.ArgumentParser(description="Simple example of a training script.")
     parser.add_argument(
         "--pretrained_model_name_or_path",
         type=str,
@@ -49,7 +85,7 @@ def parse_args():
         "--train_data_file",
         type=str,
         default=None,
-        help="A folder containing the training data."
+        help="A folder containing the training data.",
     )
     parser.add_argument(
         "--train_data_template",
@@ -60,13 +96,13 @@ def parse_args():
         "--train_set_pad",
         type=int,
         default=None,
-        help="The number to fill train dataset items up to."
+        help="The number to fill train dataset items up to.",
     )
     parser.add_argument(
         "--valid_set_pad",
         type=int,
         default=None,
-        help="The number to fill validation dataset items up to."
+        help="The number to fill validation dataset items up to.",
     )
     parser.add_argument(
         "--project",
@@ -75,20 +111,58 @@ def parse_args():
         help="The name of the current project.",
     )
     parser.add_argument(
-        "--exclude_collections",
+        "--auto_cycles", type=str, default="o", help="Cycles to run automatically."
+    )
+    parser.add_argument(
+        "--cycle_decay", type=float, default=1.0, help="Learning rate decay per cycle."
+    )
+    parser.add_argument(
+        "--placeholder_tokens",
         type=str,
-        nargs='*',
-        help="Exclude all items with a listed collection.",
+        nargs="*",
+        help="A token to use as a placeholder for the concept.",
     )
     parser.add_argument(
-        "--train_text_encoder_epochs",
-        default=999999,
-        help="Number of epochs the text encoder will be trained."
+        "--initializer_tokens",
+        type=str,
+        nargs="*",
+        help="A token to use as initializer word.",
+    )
+    parser.add_argument(
+        "--filter_tokens", type=str, nargs="*", help="Tokens to filter the dataset by."
+    )
+    parser.add_argument(
+        "--initializer_noise",
+        type=float,
+        default=0,
+        help="Noise to apply to the initializer word",
+    )
+    parser.add_argument(
+        "--alias_tokens",
+        type=str,
+        nargs="*",
+        default=[],
+        help="Tokens to create an alias for.",
+    )
+    parser.add_argument(
+        "--inverted_initializer_tokens",
+        type=str,
+        nargs="*",
+        help="A token to use as initializer word.",
+    )
+    parser.add_argument(
+        "--num_vectors", type=int, nargs="*", help="Number of vectors per embedding."
+    )
+    parser.add_argument(
+        "--exclude_collections",
+        type=str,
+        nargs="*",
+        help="Exclude all items with a listed collection.",
     )
     parser.add_argument(
         "--num_buckets",
         type=int,
-        default=0,
+        default=2,
         help="Number of aspect ratio buckets in either direction.",
     )
     parser.add_argument(
@@ -119,19 +193,6 @@ def parse_args():
         action="store_true",
         help="Shuffle tags.",
     )
-    parser.add_argument(
-        "--vector_dropout",
-        type=int,
-        default=0,
-        help="Vector dropout probability.",
-    )
-    parser.add_argument(
-        "--vector_shuffle",
-        type=str,
-        default="auto",
-        choices=["all", "trailing", "leading", "between", "auto", "off"],
-        help='Vector shuffling algorithm.',
-    )
     parser.add_argument(
         "--guidance_scale",
         type=float,
@@ -141,7 +202,7 @@ def parse_args():
         "--num_class_images",
         type=int,
         default=0,
-        help="How many class images to generate."
+        help="How many class images to generate.",
     )
     parser.add_argument(
         "--class_image_dir",
@@ -161,17 +222,19 @@ def parse_args():
         default=None,
         help="The embeddings directory where Textual Inversion embeddings are stored.",
     )
+    parser.add_argument(
+        "--train_dir_embeddings",
+        action="store_true",
+        help="Train embeddings loaded from embeddings directory.",
+    )
     parser.add_argument(
         "--collection",
         type=str,
-        nargs='*',
+        nargs="*",
         help="A collection to filter the dataset.",
     )
     parser.add_argument(
-        "--seed",
-        type=int,
-        default=None,
-        help="A seed for reproducible training."
+        "--seed", type=int, default=None, help="A seed for reproducible training."
     )
     parser.add_argument(
         "--resolution",
@@ -189,15 +252,13 @@ def parse_args():
         help="Perlin offset noise strength.",
     )
     parser.add_argument(
-        "--num_train_epochs",
-        type=int,
-        default=None
-    )
-    parser.add_argument(
-        "--num_train_steps",
-        type=int,
-        default=2000
+        "--input_pertubation",
+        type=float,
+        default=0,
+        help="The scale of input pretubation. Recommended 0.1.",
     )
+    parser.add_argument("--num_train_epochs", type=int, default=None)
+    parser.add_argument("--num_train_steps", type=int, default=2000)
     parser.add_argument(
         "--gradient_accumulation_steps",
         type=int,
@@ -205,9 +266,9 @@ def parse_args():
         help="Number of updates steps to accumulate before performing a backward/update pass.",
     )
     parser.add_argument(
-        "--gradient_checkpointing",
-        action="store_true",
-        help="Whether or not to use gradient checkpointing to save memory at the expense of slower backward pass.",
+        "--train_text_encoder_cycles",
+        default=999999,
+        help="Number of epochs the text encoder will be trained.",
     )
     parser.add_argument(
         "--find_lr",
@@ -215,9 +276,15 @@ def parse_args():
         help="Automatically find a learning rate (no training).",
     )
     parser.add_argument(
-        "--learning_rate",
+        "--learning_rate_unet",
+        type=float,
+        default=1e-4,
+        help="Initial learning rate (after the potential warmup period) to use.",
+    )
+    parser.add_argument(
+        "--learning_rate_text",
         type=float,
-        default=2e-6,
+        default=5e-5,
         help="Initial learning rate (after the potential warmup period) to use.",
     )
     parser.add_argument(
@@ -229,27 +296,31 @@ def parse_args():
         "--lr_scheduler",
         type=str,
         default="one_cycle",
-        choices=["linear", "cosine", "cosine_with_restarts", "polynomial",
-                 "constant", "constant_with_warmup", "one_cycle"],
-        help='The scheduler type to use.',
+        choices=[
+            "linear",
+            "cosine",
+            "cosine_with_restarts",
+            "polynomial",
+            "constant",
+            "constant_with_warmup",
+            "one_cycle",
+        ],
+        help="The scheduler type to use.",
     )
     parser.add_argument(
         "--lr_warmup_epochs",
         type=int,
         default=10,
-        help="Number of steps for the warmup in the lr scheduler."
+        help="Number of steps for the warmup in the lr scheduler.",
     )
     parser.add_argument(
-        "--lr_mid_point",
-        type=float,
-        default=0.3,
-        help="OneCycle schedule mid point."
+        "--lr_mid_point", type=float, default=0.3, help="OneCycle schedule mid point."
     )
     parser.add_argument(
         "--lr_cycles",
         type=int,
         default=None,
-        help="Number of restart cycles in the lr scheduler (if supported)."
+        help="Number of restart cycles in the lr scheduler (if supported).",
     )
     parser.add_argument(
         "--lr_warmup_func",
@@ -261,7 +332,7 @@ def parse_args():
         "--lr_warmup_exp",
         type=int,
         default=1,
-        help='If lr_warmup_func is "cos", exponent to modify the function'
+        help='If lr_warmup_func is "cos", exponent to modify the function',
     )
     parser.add_argument(
         "--lr_annealing_func",
@@ -273,76 +344,76 @@ def parse_args():
         "--lr_annealing_exp",
         type=int,
         default=3,
-        help='If lr_annealing_func is "half_cos" or "cos", exponent to modify the function'
+        help='If lr_annealing_func is "half_cos" or "cos", exponent to modify the function',
     )
     parser.add_argument(
         "--lr_min_lr",
         type=float,
         default=0.04,
-        help="Minimum learning rate in the lr scheduler."
-    )
-    parser.add_argument(
-        "--use_ema",
-        action="store_true",
-        help="Whether to use EMA model."
-    )
-    parser.add_argument(
-        "--ema_inv_gamma",
-        type=float,
-        default=1.0
+        help="Minimum learning rate in the lr scheduler.",
     )
+    parser.add_argument("--min_snr_gamma", type=int, default=5, help="MinSNR gamma.")
     parser.add_argument(
-        "--ema_power",
-        type=float,
-        default=6/7
-    )
-    parser.add_argument(
-        "--ema_max_decay",
-        type=float,
-        default=0.9999
+        "--schedule_sampler",
+        type=str,
+        default="uniform",
+        choices=["uniform", "loss-second-moment"],
+        help="Noise schedule sampler.",
     )
     parser.add_argument(
         "--optimizer",
         type=str,
-        default="dadan",
-        choices=["adam", "adam8bit", "adan", "lion", "dadam", "dadan", "adafactor"],
-        help='Optimizer to use'
+        default="adan",
+        choices=[
+            "adam",
+            "adam8bit",
+            "adan",
+            "lion",
+            "dadam",
+            "dadan",
+            "dlion",
+            "adafactor",
+        ],
+        help="Optimizer to use",
     )
     parser.add_argument(
         "--dadaptation_d0",
         type=float,
         default=1e-6,
-        help="The d0 parameter for Dadaptation optimizers."
+        help="The d0 parameter for Dadaptation optimizers.",
+    )
+    parser.add_argument(
+        "--dadaptation_growth_rate",
+        type=float,
+        default=math.inf,
+        help="The growth_rate parameter for Dadaptation optimizers.",
     )
     parser.add_argument(
         "--adam_beta1",
         type=float,
         default=None,
-        help="The beta1 parameter for the Adam optimizer."
+        help="The beta1 parameter for the Adam optimizer.",
     )
     parser.add_argument(
         "--adam_beta2",
         type=float,
         default=None,
-        help="The beta2 parameter for the Adam optimizer."
+        help="The beta2 parameter for the Adam optimizer.",
     )
     parser.add_argument(
-        "--adam_weight_decay",
-        type=float,
-        default=1e-2,
-        help="Weight decay to use."
+        "--adam_weight_decay", type=float, default=2e-2, help="Weight decay to use."
     )
     parser.add_argument(
         "--adam_epsilon",
         type=float,
         default=1e-08,
-        help="Epsilon value for the Adam optimizer"
+        help="Epsilon value for the Adam optimizer",
     )
     parser.add_argument(
         "--adam_amsgrad",
         type=bool,
         default=False,
-        help="Amsgrad value for the Adam optimizer"
+        help="Amsgrad value for the Adam optimizer",
     )
     parser.add_argument(
         "--mixed_precision",
@@ -355,12 +426,28 @@ def parse_args():
             "and an Nvidia Ampere GPU."
         ),
     )
+    parser.add_argument(
+        "--compile_unet",
+        action="store_true",
+        help="Compile UNet with Torch Dynamo.",
+    )
+    parser.add_argument(
+        "--use_xformers",
+        action="store_true",
+        help="Use xformers.",
+    )
     parser.add_argument(
         "--sample_frequency",
         type=int,
         default=1,
         help="How often to save a checkpoint and sample image",
     )
+    parser.add_argument(
+        "--sample_num",
+        type=int,
+        default=None,
+        help="How often to save a checkpoint and sample image (in number of samples)",
+    )
     parser.add_argument(
         "--sample_image_size",
         type=int,
@@ -383,19 +470,19 @@ def parse_args():
         "--valid_set_size",
         type=int,
         default=None,
-        help="Number of images in the validation dataset."
+        help="Number of images in the validation dataset.",
     )
     parser.add_argument(
         "--valid_set_repeat",
         type=int,
         default=1,
-        help="Times the images in the validation dataset are repeated."
+        help="Times the images in the validation dataset are repeated.",
     )
     parser.add_argument(
         "--train_batch_size",
         type=int,
         default=1,
-        help="Batch size (per device) for the training dataloader."
+        help="Batch size (per device) for the training dataloader.",
     )
     parser.add_argument(
         "--sample_steps",
@@ -407,13 +494,18 @@ def parse_args():
         "--prior_loss_weight",
         type=float,
         default=1.0,
-        help="The weight of prior preservation loss."
+        help="The weight of prior preservation loss.",
     )
+    parser.add_argument("--run_pti", action="store_true", help="Whether to run PTI.")
+    parser.add_argument("--emb_alpha", type=float, default=1.0, help="Embedding alpha")
     parser.add_argument(
-        "--max_grad_norm",
-        default=1.0,
+        "--emb_dropout",
         type=float,
-        help="Max gradient norm."
+        default=0,
+        help="Embedding dropout probability.",
+    )
+    parser.add_argument(
+        "--max_grad_norm", default=1.0, type=float, help="Max gradient norm."
     )
     parser.add_argument(
         "--noise_timesteps",
@@ -424,7 +516,7 @@ def parse_args():
         "--config",
         type=str,
         default=None,
-        help="Path to a JSON configuration file containing arguments for invoking this script."
+        help="Path to a JSON configuration file containing arguments for invoking this script.",
     )
 
     args = parser.parse_args()
@@ -441,6 +533,67 @@ def parse_args():
     if args.project is None:
         raise ValueError("You must specify --project")
 
+    if args.initializer_tokens is None:
+        args.initializer_tokens = []
+
+    if args.placeholder_tokens is None:
+        args.placeholder_tokens = []
+
+    if isinstance(args.placeholder_tokens, str):
+        args.placeholder_tokens = [args.placeholder_tokens]
+
+    if isinstance(args.initializer_tokens, str):
+        args.initializer_tokens = [args.initializer_tokens] * len(
+            args.placeholder_tokens
+        )
+
+    if len(args.placeholder_tokens) == 0:
+        args.placeholder_tokens = [
+            f"<*{i}>" for i in range(len(args.initializer_tokens))
+        ]
+
+    if len(args.initializer_tokens) == 0:
+        args.initializer_tokens = args.placeholder_tokens.copy()
+
+    if len(args.placeholder_tokens) != len(args.initializer_tokens):
+        raise ValueError(
+            "--placeholder_tokens and --initializer_tokens must have the same number of items"
+        )
+
+    if isinstance(args.inverted_initializer_tokens, str):
+        args.inverted_initializer_tokens = [args.inverted_initializer_tokens] * len(
+            args.placeholder_tokens
+        )
+
+    if (
+        isinstance(args.inverted_initializer_tokens, list)
+        and len(args.inverted_initializer_tokens) != 0
+    ):
+        args.placeholder_tokens += [f"inv_{t}" for t in args.placeholder_tokens]
+        args.initializer_tokens += args.inverted_initializer_tokens
+
+    if isinstance(args.num_vectors, int):
+        args.num_vectors = [args.num_vectors] * len(args.placeholder_tokens)
+
+    if isinstance(args.num_vectors, list) and len(args.placeholder_tokens) != len(
+        args.num_vectors
+    ):
+        raise ValueError(
+            "--placeholder_tokens and --num_vectors must have the same number of items"
+        )
+
+    if args.alias_tokens is None:
+        args.alias_tokens = []
+
+    if not isinstance(args.alias_tokens, list) or len(args.alias_tokens) % 2 != 0:
+        raise ValueError("--alias_tokens must be a list with an even number of items")
+
+    if args.filter_tokens is None:
+        args.filter_tokens = args.placeholder_tokens.copy()
+
+    if isinstance(args.filter_tokens, str):
+        args.filter_tokens = [args.filter_tokens]
+
     if isinstance(args.collection, str):
         args.collection = [args.collection]
 
@@ -451,15 +604,15 @@ def parse_args():
         raise ValueError("You must specify --output_dir")
 
     if args.adam_beta1 is None:
-        if args.optimizer in ('adam', 'adam8bit'):
+        if args.optimizer in ("adam", "adam8bit", "dadam"):
             args.adam_beta1 = 0.9
-        elif args.optimizer == 'lion':
+        elif args.optimizer in ("lion", "dlion"):
             args.adam_beta1 = 0.95
 
     if args.adam_beta2 is None:
-        if args.optimizer in ('adam', 'adam8bit'):
+        if args.optimizer in ("adam", "adam8bit", "dadam"):
             args.adam_beta2 = 0.999
-        elif args.optimizer == 'lion':
+        elif args.optimizer in ("lion", "dlion"):
             args.adam_beta2 = 0.98
 
     return args
@@ -475,7 +628,7 @@ def main():
     accelerator = Accelerator(
         log_with=LoggerType.TENSORBOARD,
         project_dir=f"{output_dir}",
-        mixed_precision=args.mixed_precision
+        mixed_precision=args.mixed_precision,
     )
 
     weight_dtype = torch.float32
@@ -484,6 +637,8 @@ def main():
     elif args.mixed_precision == "bf16":
         weight_dtype = torch.bfloat16
 
+    patch_xformers(weight_dtype)
+
     logging.basicConfig(filename=output_dir / "log.txt", level=logging.DEBUG)
 
     if args.seed is None:
@@ -493,44 +648,125 @@ def main():
 
     save_args(output_dir, args)
 
-    tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler, embeddings = get_models(
-        args.pretrained_model_name_or_path)
-
-    tokenizer.set_use_vector_shuffle(args.vector_shuffle)
-    tokenizer.set_dropout(args.vector_dropout)
+    tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler = get_models(
+        args.pretrained_model_name_or_path
+    )
+    embeddings = patch_managed_embeddings(
+        text_encoder, args.emb_alpha, args.emb_dropout
+    )
+    schedule_sampler = create_named_schedule_sampler(
+        args.schedule_sampler, noise_scheduler.config.num_train_timesteps
+    )
 
     vae.enable_slicing()
-    vae.set_use_memory_efficient_attention_xformers(True)
-    unet.enable_xformers_memory_efficient_attention()
+
+    if args.use_xformers:
+        vae.set_use_memory_efficient_attention_xformers(True)
+        unet.enable_xformers_memory_efficient_attention()
+    # elif args.compile_unet:
+    #     unet.mid_block.attentions[0].transformer_blocks[0].attn1._use_2_0_attn = False
+    #
+    #     proc = AttnProcessor()
+    #
+    #     def fn_recursive_set_proc(module: torch.nn.Module):
+    #         if hasattr(module, "processor"):
+    #             module.processor = proc
+    #
+    #         for child in module.children():
+    #             fn_recursive_set_proc(child)
+    #
+    #     fn_recursive_set_proc(unet)
 
     if args.gradient_checkpointing:
         unet.enable_gradient_checkpointing()
-        text_encoder.gradient_checkpointing_enable()
+
+    if len(args.alias_tokens) != 0:
+        alias_placeholder_tokens = args.alias_tokens[::2]
+        alias_initializer_tokens = args.alias_tokens[1::2]
+
+        added_tokens, added_ids = add_placeholder_tokens(
+            tokenizer=tokenizer,
+            embeddings=embeddings,
+            placeholder_tokens=alias_placeholder_tokens,
+            initializer_tokens=alias_initializer_tokens,
+        )
+        embeddings.persist()
+        print(
+            f"Added {len(added_tokens)} aliases: {list(zip(alias_placeholder_tokens, added_tokens, alias_initializer_tokens, added_ids))}"
+        )
+
+    placeholder_tokens = []
+    placeholder_token_ids = []
 
     if args.embeddings_dir is not None:
         embeddings_dir = Path(args.embeddings_dir)
         if not embeddings_dir.exists() or not embeddings_dir.is_dir():
             raise ValueError("--embeddings_dir must point to an existing directory")
 
-        added_tokens, added_ids = load_embeddings_from_dir(tokenizer, embeddings, embeddings_dir)
-        embeddings.persist()
-        print(f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}")
+        added_tokens, added_ids = load_embeddings_from_dir(
+            tokenizer, embeddings, embeddings_dir
+        )
+
+        placeholder_tokens = added_tokens
+        placeholder_token_ids = added_ids
+
+        print(
+            f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}"
+        )
+
+        if args.train_dir_embeddings:
+            print("Training embeddings from embeddings dir")
+        else:
+            embeddings.persist()
+
+    if len(args.placeholder_tokens) != 0 and not args.train_dir_embeddings:
+        placeholder_token_ids, initializer_token_ids = add_placeholder_tokens(
+            tokenizer=tokenizer,
+            embeddings=embeddings,
+            placeholder_tokens=args.placeholder_tokens,
+            initializer_tokens=args.initializer_tokens,
+            num_vectors=args.num_vectors,
+            initializer_noise=args.initializer_noise,
+        )
+
+        placeholder_tokens = args.placeholder_tokens
+
+        stats = list(
+            zip(
+                placeholder_tokens,
+                placeholder_token_ids,
+                args.initializer_tokens,
+                initializer_token_ids,
+            )
+        )
+        print(f"Training embeddings: {stats}")
 
     if args.scale_lr:
-        args.learning_rate = (
-            args.learning_rate * args.gradient_accumulation_steps *
-            args.train_batch_size * accelerator.num_processes
+        args.learning_rate_unet = (
+            args.learning_rate_unet
+            * args.gradient_accumulation_steps
+            * args.train_batch_size
+            * accelerator.num_processes
+        )
+        args.learning_rate_text = (
+            args.learning_rate_text
+            * args.gradient_accumulation_steps
+            * args.train_batch_size
+            * accelerator.num_processes
         )
 
     if args.find_lr:
-        args.learning_rate = 1e-6
+        args.learning_rate_unet = 1e-6
+        args.learning_rate_text = 1e-6
         args.lr_scheduler = "exponential_growth"
 
-    if args.optimizer == 'adam8bit':
+    if args.optimizer == "adam8bit":
         try:
             import bitsandbytes as bnb
         except ImportError:
-            raise ImportError("To use 8-bit Adam, please install the bitsandbytes library: `pip install bitsandbytes`.")
+            raise ImportError(
+                "To use 8-bit Adam, please install the bitsandbytes library: `pip install bitsandbytes`."
+            )
 
         create_optimizer = partial(
             bnb.optim.AdamW8bit,
@@ -539,7 +775,7 @@ def main():
             eps=args.adam_epsilon,
             amsgrad=args.adam_amsgrad,
         )
-    elif args.optimizer == 'adam':
+    elif args.optimizer == "adam":
         create_optimizer = partial(
             torch.optim.AdamW,
             betas=(args.adam_beta1, args.adam_beta2),
@@ -547,22 +783,27 @@ def main():
             eps=args.adam_epsilon,
             amsgrad=args.adam_amsgrad,
         )
-    elif args.optimizer == 'adan':
+    elif args.optimizer == "adan":
         try:
             import timm.optim
         except ImportError:
-            raise ImportError("To use Adan, please install the PyTorch Image Models library: `pip install timm`.")
+            raise ImportError(
+                "To use Adan, please install the PyTorch Image Models library: `pip install timm`."
+            )
 
         create_optimizer = partial(
             timm.optim.Adan,
             weight_decay=args.adam_weight_decay,
             eps=args.adam_epsilon,
+            no_prox=True,
         )
-    elif args.optimizer == 'lion':
+    elif args.optimizer == "lion":
         try:
             import lion_pytorch
         except ImportError:
-            raise ImportError("To use Lion, please install the lion_pytorch library: `pip install lion-pytorch`.")
+            raise ImportError(
+                "To use Lion, please install the lion_pytorch library: `pip install lion-pytorch`."
+            )
 
         create_optimizer = partial(
             lion_pytorch.Lion,
@@ -570,7 +811,7 @@ def main():
             weight_decay=args.adam_weight_decay,
             use_triton=True,
         )
-    elif args.optimizer == 'adafactor':
+    elif args.optimizer == "adafactor":
         create_optimizer = partial(
             transformers.optimization.Adafactor,
             weight_decay=args.adam_weight_decay,
@@ -580,13 +821,16 @@ def main():
         )
 
         args.lr_scheduler = "adafactor"
-        args.lr_min_lr = args.learning_rate
-        args.learning_rate = None
-    elif args.optimizer == 'dadam':
+        args.lr_min_lr = args.learning_rate_unet
+        args.learning_rate_unet = None
+        args.learning_rate_text = None
+    elif args.optimizer == "dadam":
         try:
             import dadaptation
         except ImportError:
-            raise ImportError("To use DAdaptAdam, please install the dadaptation library: `pip install dadaptation`.")
+            raise ImportError(
+                "To use DAdaptAdam, please install the dadaptation library: `pip install dadaptation`."
+            )
 
         create_optimizer = partial(
             dadaptation.DAdaptAdam,
@@ -595,46 +839,65 @@ def main():
             eps=args.adam_epsilon,
             decouple=True,
             d0=args.dadaptation_d0,
+            growth_rate=args.dadaptation_growth_rate,
         )
 
-        args.learning_rate = 1.0
-    elif args.optimizer == 'dadan':
+        args.learning_rate_unet = 1.0
+        args.learning_rate_text = 1.0
+    elif args.optimizer == "dadan":
         try:
             import dadaptation
         except ImportError:
-            raise ImportError("To use DAdaptAdan, please install the dadaptation library: `pip install dadaptation`.")
+            raise ImportError(
+                "To use DAdaptAdan, please install the dadaptation library: `pip install dadaptation`."
+            )
 
         create_optimizer = partial(
             dadaptation.DAdaptAdan,
             weight_decay=args.adam_weight_decay,
             eps=args.adam_epsilon,
             d0=args.dadaptation_d0,
+            growth_rate=args.dadaptation_growth_rate,
         )
 
-        args.learning_rate = 1.0
+        args.learning_rate_unet = 1.0
+        args.learning_rate_text = 1.0
+    elif args.optimizer == "dlion":
+        raise ImportError("DLion has not been merged into dadaptation yet")
     else:
-        raise ValueError(f"Unknown --optimizer \"{args.optimizer}\"")
+        raise ValueError(f'Unknown --optimizer "{args.optimizer}"')
 
     trainer = partial(
         train,
         accelerator=accelerator,
         unet=unet,
         text_encoder=text_encoder,
+        tokenizer=tokenizer,
         vae=vae,
         noise_scheduler=noise_scheduler,
+        schedule_sampler=schedule_sampler,
+        min_snr_gamma=args.min_snr_gamma,
         dtype=weight_dtype,
+        seed=args.seed,
+        compile_unet=args.compile_unet,
         guidance_scale=args.guidance_scale,
         prior_loss_weight=args.prior_loss_weight if args.num_class_images != 0 else 0,
-        no_val=args.valid_set_size == 0,
+        sample_scheduler=sample_scheduler,
+        sample_batch_size=args.sample_batch_size,
+        sample_num_batches=args.sample_batches,
+        sample_num_steps=args.sample_steps,
+        sample_image_size=args.sample_image_size,
+        max_grad_norm=args.max_grad_norm,
     )
 
-    checkpoint_output_dir = output_dir / "model"
-    sample_output_dir = output_dir / "samples"
+    data_generator = torch.Generator(device="cpu").manual_seed(args.seed)
+    data_npgenerator = np.random.default_rng(args.seed)
 
-    datamodule = VlpnDataModule(
+    create_datamodule = partial(
+        VlpnDataModule,
         data_file=args.train_data_file,
-        batch_size=args.train_batch_size,
         tokenizer=tokenizer,
+        constant_prompt_length=args.compile_unet,
         class_subdir=args.class_image_dir,
         with_guidance=args.guidance_scale != 0,
         num_class_images=args.num_class_images,
@@ -643,83 +906,186 @@ def main():
         progressive_buckets=args.progressive_buckets,
         bucket_step_size=args.bucket_step_size,
         bucket_max_pixels=args.bucket_max_pixels,
-        dropout=args.tag_dropout,
         shuffle=not args.no_tag_shuffle,
         template_key=args.train_data_template,
-        valid_set_size=args.valid_set_size,
         train_set_pad=args.train_set_pad,
         valid_set_pad=args.valid_set_pad,
-        seed=args.seed,
-        filter=partial(keyword_filter, None, args.collection, args.exclude_collections),
-        dtype=weight_dtype
-    )
-    datamodule.setup()
-
-    num_train_epochs = args.num_train_epochs
-    sample_frequency = args.sample_frequency
-    if num_train_epochs is None:
-        num_train_epochs = math.ceil(
-            args.num_train_steps / len(datamodule.train_dataset)
-        ) * args.gradient_accumulation_steps
-        sample_frequency = math.ceil(num_train_epochs * (sample_frequency / args.num_train_steps))
-
-    params_to_optimize = (unet.parameters(), )
-    if args.train_text_encoder_epochs != 0:
-        params_to_optimize += (
-            text_encoder.text_model.encoder.parameters(),
-            text_encoder.text_model.final_layer_norm.parameters(),
-        )
-
-    optimizer = create_optimizer(
-        itertools.chain(*params_to_optimize),
-        lr=args.learning_rate,
+        dtype=weight_dtype,
+        generator=data_generator,
+        npgenerator=data_npgenerator,
     )
 
-    lr_scheduler = get_scheduler(
-        args.lr_scheduler,
-        optimizer=optimizer,
-        num_training_steps_per_epoch=len(datamodule.train_dataloader),
-        gradient_accumulation_steps=args.gradient_accumulation_steps,
+    create_lr_scheduler = partial(
+        get_scheduler,
         min_lr=args.lr_min_lr,
         warmup_func=args.lr_warmup_func,
         annealing_func=args.lr_annealing_func,
         warmup_exp=args.lr_warmup_exp,
         annealing_exp=args.lr_annealing_exp,
-        cycles=args.lr_cycles,
         end_lr=1e2,
-        train_epochs=num_train_epochs,
-        warmup_epochs=args.lr_warmup_epochs,
         mid_point=args.lr_mid_point,
     )
 
-    trainer(
-        strategy=dreambooth_strategy,
-        project="dreambooth",
-        train_dataloader=datamodule.train_dataloader,
-        val_dataloader=datamodule.val_dataloader,
-        seed=args.seed,
-        optimizer=optimizer,
-        lr_scheduler=lr_scheduler,
-        num_train_epochs=num_train_epochs,
-        gradient_accumulation_steps=args.gradient_accumulation_steps,
-        sample_frequency=sample_frequency,
-        offset_noise_strength=args.offset_noise_strength,
-        # --
-        tokenizer=tokenizer,
-        sample_scheduler=sample_scheduler,
-        sample_output_dir=sample_output_dir,
-        checkpoint_output_dir=checkpoint_output_dir,
-        train_text_encoder_epochs=args.train_text_encoder_epochs,
-        max_grad_norm=args.max_grad_norm,
-        use_ema=args.use_ema,
-        ema_inv_gamma=args.ema_inv_gamma,
-        ema_power=args.ema_power,
-        ema_max_decay=args.ema_max_decay,
-        sample_batch_size=args.sample_batch_size,
-        sample_num_batches=args.sample_batches,
-        sample_num_steps=args.sample_steps,
-        sample_image_size=args.sample_image_size,
+    # Dreambooth
+    # --------------------------------------------------------------------------------
+
+    dreambooth_datamodule = create_datamodule(
+        valid_set_size=args.valid_set_size,
+        batch_size=args.train_batch_size,
+        dropout=args.tag_dropout,
+        filter=partial(keyword_filter, None, args.collection, args.exclude_collections),
+    )
+    dreambooth_datamodule.setup()
+
+    num_train_epochs = args.num_train_epochs
+    dreambooth_sample_frequency = args.sample_frequency
+    if num_train_epochs is None:
+        num_train_epochs = (
+            math.ceil(args.num_train_steps / len(dreambooth_datamodule.train_dataset))
+            * args.gradient_accumulation_steps
+        )
+        dreambooth_sample_frequency = math.ceil(
+            num_train_epochs * (dreambooth_sample_frequency / args.num_train_steps)
+        )
+    num_training_steps_per_epoch = math.ceil(
+        len(dreambooth_datamodule.train_dataset) / args.gradient_accumulation_steps
     )
+    num_train_steps = num_training_steps_per_epoch * num_train_epochs
+    if args.sample_num is not None:
+        dreambooth_sample_frequency = math.ceil(num_train_epochs / args.sample_num)
+
+    dreambooth_project = "dreambooth"
+
+    if accelerator.is_main_process:
+        accelerator.init_trackers(dreambooth_project)
+
+    dreambooth_sample_output_dir = output_dir / dreambooth_project / "samples"
+
+    training_iter = 0
+    auto_cycles = list(args.auto_cycles)
+    learning_rate_unet = args.learning_rate_unet
+    learning_rate_text = args.learning_rate_text
+    lr_scheduler = args.lr_scheduler
+    lr_warmup_epochs = args.lr_warmup_epochs
+    lr_cycles = args.lr_cycles
+
+    avg_loss = AverageMeter()
+    avg_acc = AverageMeter()
+    avg_loss_val = AverageMeter()
+    avg_acc_val = AverageMeter()
+
+    params_to_optimize = [
+        {
+            "params": (param for param in unet.parameters() if param.requires_grad),
+            "lr": learning_rate_unet,
+        },
+        {
+            "params": (
+                param for param in text_encoder.parameters() if param.requires_grad
+            ),
+            "lr": learning_rate_text,
+        },
+    ]
+    group_labels = ["unet", "text"]
+
+    dreambooth_optimizer = create_optimizer(params_to_optimize)
+
+    while True:
+        if len(auto_cycles) != 0:
+            response = auto_cycles.pop(0)
+        else:
+            response = input(
+                "\n### Choose action: [o] one_cycle, [w] warmup, [c] constant, [d] decay, [s] stop \n--> "
+            )
+
+        if response.lower().strip() == "o":
+            if args.learning_rate_unet is not None:
+                learning_rate_unet = (
+                    args.learning_rate_unet * 2 * (args.cycle_decay**training_iter)
+                )
+            if args.learning_rate_text is not None:
+                learning_rate_text = (
+                    args.learning_rate_text * 2 * (args.cycle_decay**training_iter)
+                )
+        else:
+            learning_rate_unet = args.learning_rate_unet * (
+                args.cycle_decay**training_iter
+            )
+            learning_rate_text = args.learning_rate_text * (
+                args.cycle_decay**training_iter
+            )
+
+        if response.lower().strip() == "o":
+            lr_scheduler = "one_cycle"
+            lr_warmup_epochs = args.lr_warmup_epochs
+            lr_cycles = args.lr_cycles
+        elif response.lower().strip() == "w":
+            lr_scheduler = "constant_with_warmup"
+            lr_warmup_epochs = num_train_epochs
+        elif response.lower().strip() == "c":
+            lr_scheduler = "constant"
+        elif response.lower().strip() == "d":
+            lr_scheduler = "cosine"
+            lr_warmup_epochs = 0
+            lr_cycles = 1
+        elif response.lower().strip() == "s":
+            break
+        else:
+            continue
+
+        print("")
+        print(
+            f"============ Dreambooth cycle {training_iter + 1}: {response} ============"
+        )
+        print("")
+
+        for group, lr in zip(
+            dreambooth_optimizer.param_groups, [learning_rate_unet, learning_rate_text]
+        ):
+            group["lr"] = lr
+
+        dreambooth_lr_scheduler = create_lr_scheduler(
+            lr_scheduler,
+            gradient_accumulation_steps=args.gradient_accumulation_steps,
+            optimizer=dreambooth_optimizer,
+            num_training_steps_per_epoch=len(dreambooth_datamodule.train_dataloader),
+            train_epochs=num_train_epochs,
+            cycles=lr_cycles,
+            warmup_epochs=lr_warmup_epochs,
+        )
+
+        dreambooth_checkpoint_output_dir = (
+            output_dir / dreambooth_project / f"model_{training_iter}"
+        )
+
+        trainer(
+            strategy=dreambooth_strategy,
+            train_dataloader=dreambooth_datamodule.train_dataloader,
+            val_dataloader=dreambooth_datamodule.val_dataloader,
+            optimizer=dreambooth_optimizer,
+            lr_scheduler=dreambooth_lr_scheduler,
+            num_train_epochs=num_train_epochs,
+            gradient_accumulation_steps=args.gradient_accumulation_steps,
+            global_step_offset=training_iter * num_train_steps,
+            cycle=training_iter,
+            train_text_encoder_cycles=args.train_text_encoder_cycles,
+            # --
+            group_labels=group_labels,
+            sample_output_dir=dreambooth_sample_output_dir,
+            checkpoint_output_dir=dreambooth_checkpoint_output_dir,
+            sample_frequency=dreambooth_sample_frequency,
+            offset_noise_strength=args.offset_noise_strength,
+            input_pertubation=args.input_pertubation,
+            no_val=args.valid_set_size == 0,
+            avg_loss=avg_loss,
+            avg_acc=avg_acc,
+            avg_loss_val=avg_loss_val,
+            avg_acc_val=avg_acc_val,
+        )
+
+        training_iter += 1
+
+    accelerator.end_training()
 
 
 if __name__ == "__main__":
diff --git a/train_lora.py b/train_lora.py
index c74dd8f..fccf48d 100644
--- a/train_lora.py
+++ b/train_lora.py
@@ -16,6 +16,7 @@ from accelerate import Accelerator
 from accelerate.logging import get_logger
 from accelerate.utils import LoggerType, set_seed
 from peft import LoraConfig, get_peft_model
+
 # from diffusers.models.attention_processor import AttnProcessor
 from diffusers.utils.import_utils import is_xformers_available
 import transformers
@@ -34,15 +35,20 @@ from util.files import load_config, load_embeddings_from_dir
 
 # https://github.com/huggingface/peft/blob/main/examples/lora_dreambooth/train_dreambooth.py
 UNET_TARGET_MODULES_ORIG = ["to_q", "to_v", "query", "value"]
-UNET_TARGET_MODULES = UNET_TARGET_MODULES_ORIG + ["to_out.0"] # ["to_k", "key"]
+UNET_TARGET_MODULES = UNET_TARGET_MODULES_ORIG + ["to_out.0", "to_k", "key"]  # []
 TEXT_ENCODER_TARGET_MODULES_ORIG = ["q_proj", "v_proj"]
-TEXT_ENCODER_TARGET_MODULES = TEXT_ENCODER_TARGET_MODULES_ORIG + ["out_proj"] # ["k_proj"]
-TEXT_ENCODER_TARGET_MODULES_WITH_EMBEDDING = TEXT_ENCODER_TARGET_MODULES + ["token_embedding"]
+TEXT_ENCODER_TARGET_MODULES = TEXT_ENCODER_TARGET_MODULES_ORIG + [
+    "out_proj",
+    "k_proj",
+]  # []
+TEXT_ENCODER_TARGET_MODULES_WITH_EMBEDDING = TEXT_ENCODER_TARGET_MODULES + [
+    "token_embedding"
+]
 
 
 logger = get_logger(__name__)
 
-warnings.filterwarnings('ignore')
+warnings.filterwarnings("ignore")
 
 
 torch.backends.cuda.matmul.allow_tf32 = True
@@ -55,20 +61,27 @@ hidet.torch.dynamo_config.use_tensor_core(True)
 hidet.torch.dynamo_config.search_space(0)
 
 
-if is_xformers_available():
-    import xformers
-    import xformers.ops
-    
-    orig_xformers_memory_efficient_attention = xformers.ops.memory_efficient_attention
-    def xformers_memory_efficient_attention(query: torch.Tensor, key: torch.Tensor, value: torch.Tensor, **kwargs):
-        return orig_xformers_memory_efficient_attention(query.to(key.dtype), key, value.to(key.dtype), **kwargs)
-    xformers.ops.memory_efficient_attention = xformers_memory_efficient_attention
+def patch_xformers(dtype):
+    if is_xformers_available():
+        import xformers
+        import xformers.ops
+
+        orig_xformers_memory_efficient_attention = (
+            xformers.ops.memory_efficient_attention
+        )
+
+        def xformers_memory_efficient_attention(
+            query: torch.Tensor, key: torch.Tensor, value: torch.Tensor, **kwargs
+        ):
+            return orig_xformers_memory_efficient_attention(
+                query.to(dtype), key.to(dtype), value.to(dtype), **kwargs
+            )
+
+        xformers.ops.memory_efficient_attention = xformers_memory_efficient_attention
 
 
 def parse_args():
-    parser = argparse.ArgumentParser(
-        description="Simple example of a training script."
-    )
+    parser = argparse.ArgumentParser(description="Simple example of a training script.")
     parser.add_argument(
         "--pretrained_model_name_or_path",
         type=str,
@@ -85,7 +98,7 @@ def parse_args():
         "--train_data_file",
         type=str,
         default=None,
-        help="A folder containing the training data."
+        help="A folder containing the training data.",
     )
     parser.add_argument(
         "--train_data_template",
@@ -96,13 +109,13 @@ def parse_args():
         "--train_set_pad",
         type=int,
         default=None,
-        help="The number to fill train dataset items up to."
+        help="The number to fill train dataset items up to.",
     )
     parser.add_argument(
         "--valid_set_pad",
         type=int,
         default=None,
-        help="The number to fill validation dataset items up to."
+        help="The number to fill validation dataset items up to.",
     )
     parser.add_argument(
         "--project",
@@ -111,64 +124,52 @@ def parse_args():
         help="The name of the current project.",
     )
     parser.add_argument(
-        "--auto_cycles",
-        type=str,
-        default="o",
-        help="Cycles to run automatically."
+        "--auto_cycles", type=str, default="o", help="Cycles to run automatically."
     )
     parser.add_argument(
-        "--cycle_decay",
-        type=float,
-        default=1.0,
-        help="Learning rate decay per cycle."
+        "--cycle_decay", type=float, default=1.0, help="Learning rate decay per cycle."
     )
     parser.add_argument(
         "--placeholder_tokens",
         type=str,
-        nargs='*',
+        nargs="*",
         help="A token to use as a placeholder for the concept.",
     )
     parser.add_argument(
         "--initializer_tokens",
         type=str,
-        nargs='*',
-        help="A token to use as initializer word."
+        nargs="*",
+        help="A token to use as initializer word.",
     )
     parser.add_argument(
-        "--filter_tokens",
-        type=str,
-        nargs='*',
-        help="Tokens to filter the dataset by."
+        "--filter_tokens", type=str, nargs="*", help="Tokens to filter the dataset by."
     )
     parser.add_argument(
         "--initializer_noise",
         type=float,
         default=0,
-        help="Noise to apply to the initializer word"
+        help="Noise to apply to the initializer word",
     )
     parser.add_argument(
         "--alias_tokens",
         type=str,
-        nargs='*',
+        nargs="*",
         default=[],
-        help="Tokens to create an alias for."
+        help="Tokens to create an alias for.",
     )
     parser.add_argument(
         "--inverted_initializer_tokens",
         type=str,
-        nargs='*',
-        help="A token to use as initializer word."
+        nargs="*",
+        help="A token to use as initializer word.",
     )
     parser.add_argument(
-        "--num_vectors",
-        type=int,
-        nargs='*',
-        help="Number of vectors per embedding."
+        "--num_vectors", type=int, nargs="*", help="Number of vectors per embedding."
     )
     parser.add_argument(
         "--exclude_collections",
         type=str,
-        nargs='*',
+        nargs="*",
         help="Exclude all items with a listed collection.",
     )
     parser.add_argument(
@@ -214,7 +215,7 @@ def parse_args():
         "--num_class_images",
         type=int,
         default=0,
-        help="How many class images to generate."
+        help="How many class images to generate.",
     )
     parser.add_argument(
         "--class_image_dir",
@@ -242,14 +243,11 @@ def parse_args():
     parser.add_argument(
         "--collection",
         type=str,
-        nargs='*',
+        nargs="*",
         help="A collection to filter the dataset.",
     )
     parser.add_argument(
-        "--seed",
-        type=int,
-        default=None,
-        help="A seed for reproducible training."
+        "--seed", type=int, default=None, help="A seed for reproducible training."
     )
     parser.add_argument(
         "--resolution",
@@ -270,18 +268,10 @@ def parse_args():
         "--input_pertubation",
         type=float,
         default=0,
-        help="The scale of input pretubation. Recommended 0.1."
-    )
-    parser.add_argument(
-        "--num_train_epochs",
-        type=int,
-        default=None
-    )
-    parser.add_argument(
-        "--num_train_steps",
-        type=int,
-        default=2000
+        help="The scale of input pretubation. Recommended 0.1.",
     )
+    parser.add_argument("--num_train_epochs", type=int, default=None)
+    parser.add_argument("--num_train_steps", type=int, default=2000)
     parser.add_argument(
         "--gradient_accumulation_steps",
         type=int,
@@ -289,22 +279,19 @@ def parse_args():
         help="Number of updates steps to accumulate before performing a backward/update pass.",
     )
     parser.add_argument(
-        "--lora_r",
-        type=int,
-        default=8,
-        help="Lora rank, only used if use_lora is True"
+        "--lora_r", type=int, default=8, help="Lora rank, only used if use_lora is True"
     )
     parser.add_argument(
         "--lora_alpha",
         type=int,
         default=32,
-        help="Lora alpha, only used if use_lora is True"
+        help="Lora alpha, only used if use_lora is True",
     )
     parser.add_argument(
         "--lora_dropout",
         type=float,
         default=0.0,
-        help="Lora dropout, only used if use_lora is True"
+        help="Lora dropout, only used if use_lora is True",
     )
     parser.add_argument(
         "--lora_bias",
@@ -344,7 +331,7 @@ def parse_args():
     parser.add_argument(
         "--train_text_encoder_cycles",
         default=999999,
-        help="Number of epochs the text encoder will be trained."
+        help="Number of epochs the text encoder will be trained.",
     )
     parser.add_argument(
         "--find_lr",
@@ -378,27 +365,31 @@ def parse_args():
         "--lr_scheduler",
         type=str,
         default="one_cycle",
-        choices=["linear", "cosine", "cosine_with_restarts", "polynomial",
-                 "constant", "constant_with_warmup", "one_cycle"],
-        help='The scheduler type to use.',
+        choices=[
+            "linear",
+            "cosine",
+            "cosine_with_restarts",
+            "polynomial",
+            "constant",
+            "constant_with_warmup",
+            "one_cycle",
+        ],
+        help="The scheduler type to use.",
     )
     parser.add_argument(
         "--lr_warmup_epochs",
         type=int,
         default=10,
-        help="Number of steps for the warmup in the lr scheduler."
+        help="Number of steps for the warmup in the lr scheduler.",
     )
     parser.add_argument(
-        "--lr_mid_point",
-        type=float,
-        default=0.3,
-        help="OneCycle schedule mid point."
+        "--lr_mid_point", type=float, default=0.3, help="OneCycle schedule mid point."
     )
     parser.add_argument(
         "--lr_cycles",
         type=int,
         default=None,
-        help="Number of restart cycles in the lr scheduler (if supported)."
+        help="Number of restart cycles in the lr scheduler (if supported).",
     )
     parser.add_argument(
         "--lr_warmup_func",
@@ -410,7 +401,7 @@ def parse_args():
         "--lr_warmup_exp",
         type=int,
         default=1,
-        help='If lr_warmup_func is "cos", exponent to modify the function'
+        help='If lr_warmup_func is "cos", exponent to modify the function',
     )
     parser.add_argument(
         "--lr_annealing_func",
@@ -422,69 +413,76 @@ def parse_args():
         "--lr_annealing_exp",
         type=int,
         default=3,
-        help='If lr_annealing_func is "half_cos" or "cos", exponent to modify the function'
+        help='If lr_annealing_func is "half_cos" or "cos", exponent to modify the function',
     )
     parser.add_argument(
         "--lr_min_lr",
         type=float,
         default=0.04,
-        help="Minimum learning rate in the lr scheduler."
-    )
-    parser.add_argument(
-        "--min_snr_gamma",
-        type=int,
-        default=5,
-        help="MinSNR gamma."
+        help="Minimum learning rate in the lr scheduler.",
     )
+    parser.add_argument("--min_snr_gamma", type=int, default=5, help="MinSNR gamma.")
     parser.add_argument(
         "--schedule_sampler",
         type=str,
         default="uniform",
         choices=["uniform", "loss-second-moment"],
-        help="Noise schedule sampler."
+        help="Noise schedule sampler.",
     )
     parser.add_argument(
         "--optimizer",
         type=str,
         default="adan",
-        choices=["adam", "adam8bit", "adan", "lion", "dadam", "dadan", "adafactor"],
-        help='Optimizer to use'
+        choices=[
+            "adam",
+            "adam8bit",
+            "adan",
+            "lion",
+            "dadam",
+            "dadan",
+            "dlion",
+            "adafactor",
+        ],
+        help="Optimizer to use",
     )
     parser.add_argument(
         "--dadaptation_d0",
         type=float,
         default=1e-6,
-        help="The d0 parameter for Dadaptation optimizers."
+        help="The d0 parameter for Dadaptation optimizers.",
+    )
+    parser.add_argument(
+        "--dadaptation_growth_rate",
+        type=float,
+        default=math.inf,
+        help="The growth_rate parameter for Dadaptation optimizers.",
     )
     parser.add_argument(
         "--adam_beta1",
         type=float,
         default=None,
-        help="The beta1 parameter for the Adam optimizer."
+        help="The beta1 parameter for the Adam optimizer.",
     )
     parser.add_argument(
         "--adam_beta2",
         type=float,
         default=None,
-        help="The beta2 parameter for the Adam optimizer."
+        help="The beta2 parameter for the Adam optimizer.",
     )
     parser.add_argument(
-        "--adam_weight_decay",
-        type=float,
-        default=2e-2,
-        help="Weight decay to use."
+        "--adam_weight_decay", type=float, default=2e-2, help="Weight decay to use."
     )
     parser.add_argument(
         "--adam_epsilon",
         type=float,
         default=1e-08,
-        help="Epsilon value for the Adam optimizer"
+        help="Epsilon value for the Adam optimizer",
     )
     parser.add_argument(
         "--adam_amsgrad",
         type=bool,
         default=False,
-        help="Amsgrad value for the Adam optimizer"
+        help="Amsgrad value for the Adam optimizer",
     )
     parser.add_argument(
         "--mixed_precision",
@@ -547,19 +545,19 @@ def parse_args():
         "--valid_set_size",
         type=int,
         default=None,
-        help="Number of images in the validation dataset."
+        help="Number of images in the validation dataset.",
     )
     parser.add_argument(
         "--valid_set_repeat",
         type=int,
         default=1,
-        help="Times the images in the validation dataset are repeated."
+        help="Times the images in the validation dataset are repeated.",
     )
     parser.add_argument(
         "--train_batch_size",
         type=int,
         default=1,
-        help="Batch size (per device) for the training dataloader."
+        help="Batch size (per device) for the training dataloader.",
     )
     parser.add_argument(
         "--sample_steps",
@@ -571,19 +569,10 @@ def parse_args():
         "--prior_loss_weight",
         type=float,
         default=1.0,
-        help="The weight of prior preservation loss."
-    )
-    parser.add_argument(
-        "--run_pti",
-        action="store_true",
-        help="Whether to run PTI."
-    )
-    parser.add_argument(
-        "--emb_alpha",
-        type=float,
-        default=1.0,
-        help="Embedding alpha"
+        help="The weight of prior preservation loss.",
     )
+    parser.add_argument("--run_pti", action="store_true", help="Whether to run PTI.")
+    parser.add_argument("--emb_alpha", type=float, default=1.0, help="Embedding alpha")
     parser.add_argument(
         "--emb_dropout",
         type=float,
@@ -591,27 +580,16 @@ def parse_args():
         help="Embedding dropout probability.",
     )
     parser.add_argument(
-        "--use_emb_decay",
-        action="store_true",
-        help="Whether to use embedding decay."
+        "--use_emb_decay", action="store_true", help="Whether to use embedding decay."
     )
     parser.add_argument(
-        "--emb_decay_target",
-        default=0.4,
-        type=float,
-        help="Embedding decay target."
+        "--emb_decay_target", default=0.4, type=float, help="Embedding decay target."
     )
     parser.add_argument(
-        "--emb_decay",
-        default=1e+2,
-        type=float,
-        help="Embedding decay factor."
+        "--emb_decay", default=1e2, type=float, help="Embedding decay factor."
     )
     parser.add_argument(
-        "--max_grad_norm",
-        default=1.0,
-        type=float,
-        help="Max gradient norm."
+        "--max_grad_norm", default=1.0, type=float, help="Max gradient norm."
     )
     parser.add_argument(
         "--noise_timesteps",
@@ -622,7 +600,7 @@ def parse_args():
         "--config",
         type=str,
         default=None,
-        help="Path to a JSON configuration file containing arguments for invoking this script."
+        help="Path to a JSON configuration file containing arguments for invoking this script.",
     )
 
     args = parser.parse_args()
@@ -649,29 +627,44 @@ def parse_args():
         args.placeholder_tokens = [args.placeholder_tokens]
 
     if isinstance(args.initializer_tokens, str):
-        args.initializer_tokens = [args.initializer_tokens] * len(args.placeholder_tokens)
+        args.initializer_tokens = [args.initializer_tokens] * len(
+            args.placeholder_tokens
+        )
 
     if len(args.placeholder_tokens) == 0:
-        args.placeholder_tokens = [f"<*{i}>" for i in range(len(args.initializer_tokens))]
+        args.placeholder_tokens = [
+            f"<*{i}>" for i in range(len(args.initializer_tokens))
+        ]
 
     if len(args.initializer_tokens) == 0:
         args.initializer_tokens = args.placeholder_tokens.copy()
 
     if len(args.placeholder_tokens) != len(args.initializer_tokens):
-        raise ValueError("--placeholder_tokens and --initializer_tokens must have the same number of items")
+        raise ValueError(
+            "--placeholder_tokens and --initializer_tokens must have the same number of items"
+        )
 
     if isinstance(args.inverted_initializer_tokens, str):
-        args.inverted_initializer_tokens = [args.inverted_initializer_tokens] * len(args.placeholder_tokens)
+        args.inverted_initializer_tokens = [args.inverted_initializer_tokens] * len(
+            args.placeholder_tokens
+        )
 
-    if isinstance(args.inverted_initializer_tokens, list) and len(args.inverted_initializer_tokens) != 0:
+    if (
+        isinstance(args.inverted_initializer_tokens, list)
+        and len(args.inverted_initializer_tokens) != 0
+    ):
         args.placeholder_tokens += [f"inv_{t}" for t in args.placeholder_tokens]
         args.initializer_tokens += args.inverted_initializer_tokens
 
     if isinstance(args.num_vectors, int):
         args.num_vectors = [args.num_vectors] * len(args.placeholder_tokens)
 
-    if isinstance(args.num_vectors, list) and len(args.placeholder_tokens) != len(args.num_vectors):
-        raise ValueError("--placeholder_tokens and --num_vectors must have the same number of items")
+    if isinstance(args.num_vectors, list) and len(args.placeholder_tokens) != len(
+        args.num_vectors
+    ):
+        raise ValueError(
+            "--placeholder_tokens and --num_vectors must have the same number of items"
+        )
 
     if args.alias_tokens is None:
         args.alias_tokens = []
@@ -695,15 +688,15 @@ def parse_args():
         raise ValueError("You must specify --output_dir")
 
     if args.adam_beta1 is None:
-        if args.optimizer in ('adam', 'adam8bit'):
+        if args.optimizer in ("adam", "adam8bit", "dadam"):
             args.adam_beta1 = 0.9
-        elif args.optimizer == 'lion':
+        elif args.optimizer in ("lion", "dlion"):
             args.adam_beta1 = 0.95
 
     if args.adam_beta2 is None:
-        if args.optimizer in ('adam', 'adam8bit'):
+        if args.optimizer in ("adam", "adam8bit", "dadam"):
             args.adam_beta2 = 0.999
-        elif args.optimizer == 'lion':
+        elif args.optimizer in ("lion", "dlion"):
             args.adam_beta2 = 0.98
 
     return args
@@ -719,7 +712,7 @@ def main():
     accelerator = Accelerator(
         log_with=LoggerType.TENSORBOARD,
         project_dir=f"{output_dir}",
-        mixed_precision=args.mixed_precision
+        mixed_precision=args.mixed_precision,
     )
 
     weight_dtype = torch.float32
@@ -728,6 +721,8 @@ def main():
     elif args.mixed_precision == "bf16":
         weight_dtype = torch.bfloat16
 
+    patch_xformers(weight_dtype)
+
     logging.basicConfig(filename=output_dir / "log.txt", level=logging.DEBUG)
 
     if args.seed is None:
@@ -737,12 +732,18 @@ def main():
 
     save_args(output_dir, args)
 
-    tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler = get_models(args.pretrained_model_name_or_path)
-    schedule_sampler = create_named_schedule_sampler(args.schedule_sampler, noise_scheduler.config.num_train_timesteps)
-    
+    tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler = get_models(
+        args.pretrained_model_name_or_path
+    )
+    schedule_sampler = create_named_schedule_sampler(
+        args.schedule_sampler, noise_scheduler.config.num_train_timesteps
+    )
+
     def ensure_embeddings():
         if args.lora_text_encoder_emb:
-            raise ValueError("Can't use TI options when training token embeddings with LoRA")
+            raise ValueError(
+                "Can't use TI options when training token embeddings with LoRA"
+            )
         return patch_managed_embeddings(text_encoder, args.emb_alpha, args.emb_dropout)
 
     unet_config = LoraConfig(
@@ -757,7 +758,9 @@ def main():
     text_encoder_config = LoraConfig(
         r=args.lora_text_encoder_r,
         lora_alpha=args.lora_text_encoder_alpha,
-        target_modules=TEXT_ENCODER_TARGET_MODULES_WITH_EMBEDDING if args.lora_text_encoder_emb else TEXT_ENCODER_TARGET_MODULES,
+        target_modules=TEXT_ENCODER_TARGET_MODULES_WITH_EMBEDDING
+        if args.lora_text_encoder_emb
+        else TEXT_ENCODER_TARGET_MODULES,
         lora_dropout=args.lora_text_encoder_dropout,
         bias=args.lora_text_encoder_bias,
     )
@@ -787,7 +790,7 @@ def main():
 
     if len(args.alias_tokens) != 0:
         embeddings = ensure_embeddings()
-        
+
         alias_placeholder_tokens = args.alias_tokens[::2]
         alias_initializer_tokens = args.alias_tokens[1::2]
 
@@ -795,27 +798,33 @@ def main():
             tokenizer=tokenizer,
             embeddings=embeddings,
             placeholder_tokens=alias_placeholder_tokens,
-            initializer_tokens=alias_initializer_tokens
+            initializer_tokens=alias_initializer_tokens,
         )
         embeddings.persist()
-        print(f"Added {len(added_tokens)} aliases: {list(zip(alias_placeholder_tokens, added_tokens, alias_initializer_tokens, added_ids))}")
+        print(
+            f"Added {len(added_tokens)} aliases: {list(zip(alias_placeholder_tokens, added_tokens, alias_initializer_tokens, added_ids))}"
+        )
 
     placeholder_tokens = []
     placeholder_token_ids = []
 
     if args.embeddings_dir is not None:
         embeddings = ensure_embeddings()
-        
+
         embeddings_dir = Path(args.embeddings_dir)
         if not embeddings_dir.exists() or not embeddings_dir.is_dir():
             raise ValueError("--embeddings_dir must point to an existing directory")
 
-        added_tokens, added_ids = load_embeddings_from_dir(tokenizer, embeddings, embeddings_dir)
+        added_tokens, added_ids = load_embeddings_from_dir(
+            tokenizer, embeddings, embeddings_dir
+        )
 
         placeholder_tokens = added_tokens
         placeholder_token_ids = added_ids
 
-        print(f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}")
+        print(
+            f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}"
+        )
 
         if args.train_dir_embeddings:
             print("Training embeddings from embeddings dir")
@@ -824,7 +833,7 @@ def main():
 
     if len(args.placeholder_tokens) != 0 and not args.train_dir_embeddings:
         embeddings = ensure_embeddings()
-        
+
         placeholder_token_ids, initializer_token_ids = add_placeholder_tokens(
             tokenizer=tokenizer,
             embeddings=embeddings,
@@ -836,23 +845,34 @@ def main():
 
         placeholder_tokens = args.placeholder_tokens
 
-        stats = list(zip(
-            placeholder_tokens, placeholder_token_ids, args.initializer_tokens, initializer_token_ids
-        ))
+        stats = list(
+            zip(
+                placeholder_tokens,
+                placeholder_token_ids,
+                args.initializer_tokens,
+                initializer_token_ids,
+            )
+        )
         print(f"Training embeddings: {stats}")
 
     if args.scale_lr:
         args.learning_rate_unet = (
-            args.learning_rate_unet * args.gradient_accumulation_steps *
-            args.train_batch_size * accelerator.num_processes
+            args.learning_rate_unet
+            * args.gradient_accumulation_steps
+            * args.train_batch_size
+            * accelerator.num_processes
         )
         args.learning_rate_text = (
-            args.learning_rate_text * args.gradient_accumulation_steps *
-            args.train_batch_size * accelerator.num_processes
+            args.learning_rate_text
+            * args.gradient_accumulation_steps
+            * args.train_batch_size
+            * accelerator.num_processes
         )
         args.learning_rate_emb = (
-            args.learning_rate_emb * args.gradient_accumulation_steps *
-            args.train_batch_size * accelerator.num_processes
+            args.learning_rate_emb
+            * args.gradient_accumulation_steps
+            * args.train_batch_size
+            * accelerator.num_processes
         )
 
     if args.find_lr:
@@ -861,11 +881,13 @@ def main():
         args.learning_rate_emb = 1e-6
         args.lr_scheduler = "exponential_growth"
 
-    if args.optimizer == 'adam8bit':
+    if args.optimizer == "adam8bit":
         try:
             import bitsandbytes as bnb
         except ImportError:
-            raise ImportError("To use 8-bit Adam, please install the bitsandbytes library: `pip install bitsandbytes`.")
+            raise ImportError(
+                "To use 8-bit Adam, please install the bitsandbytes library: `pip install bitsandbytes`."
+            )
 
         create_optimizer = partial(
             bnb.optim.AdamW8bit,
@@ -874,7 +896,7 @@ def main():
             eps=args.adam_epsilon,
             amsgrad=args.adam_amsgrad,
         )
-    elif args.optimizer == 'adam':
+    elif args.optimizer == "adam":
         create_optimizer = partial(
             torch.optim.AdamW,
             betas=(args.adam_beta1, args.adam_beta2),
@@ -882,11 +904,13 @@ def main():
             eps=args.adam_epsilon,
             amsgrad=args.adam_amsgrad,
         )
-    elif args.optimizer == 'adan':
+    elif args.optimizer == "adan":
         try:
             import timm.optim
         except ImportError:
-            raise ImportError("To use Adan, please install the PyTorch Image Models library: `pip install timm`.")
+            raise ImportError(
+                "To use Adan, please install the PyTorch Image Models library: `pip install timm`."
+            )
 
         create_optimizer = partial(
             timm.optim.Adan,
@@ -894,11 +918,13 @@ def main():
             eps=args.adam_epsilon,
             no_prox=True,
         )
-    elif args.optimizer == 'lion':
+    elif args.optimizer == "lion":
         try:
             import lion_pytorch
         except ImportError:
-            raise ImportError("To use Lion, please install the lion_pytorch library: `pip install lion-pytorch`.")
+            raise ImportError(
+                "To use Lion, please install the lion_pytorch library: `pip install lion-pytorch`."
+            )
 
         create_optimizer = partial(
             lion_pytorch.Lion,
@@ -906,7 +932,7 @@ def main():
             weight_decay=args.adam_weight_decay,
             use_triton=True,
         )
-    elif args.optimizer == 'adafactor':
+    elif args.optimizer == "adafactor":
         create_optimizer = partial(
             transformers.optimization.Adafactor,
             weight_decay=args.adam_weight_decay,
@@ -920,11 +946,13 @@ def main():
         args.learning_rate_unet = None
         args.learning_rate_text = None
         args.learning_rate_emb = None
-    elif args.optimizer == 'dadam':
+    elif args.optimizer == "dadam":
         try:
             import dadaptation
         except ImportError:
-            raise ImportError("To use DAdaptAdam, please install the dadaptation library: `pip install dadaptation`.")
+            raise ImportError(
+                "To use DAdaptAdam, please install the dadaptation library: `pip install dadaptation`."
+            )
 
         create_optimizer = partial(
             dadaptation.DAdaptAdam,
@@ -933,29 +961,35 @@ def main():
             eps=args.adam_epsilon,
             decouple=True,
             d0=args.dadaptation_d0,
+            growth_rate=args.dadaptation_growth_rate,
         )
 
         args.learning_rate_unet = 1.0
         args.learning_rate_text = 1.0
         args.learning_rate_emb = 1.0
-    elif args.optimizer == 'dadan':
+    elif args.optimizer == "dadan":
         try:
             import dadaptation
         except ImportError:
-            raise ImportError("To use DAdaptAdan, please install the dadaptation library: `pip install dadaptation`.")
+            raise ImportError(
+                "To use DAdaptAdan, please install the dadaptation library: `pip install dadaptation`."
+            )
 
         create_optimizer = partial(
             dadaptation.DAdaptAdan,
             weight_decay=args.adam_weight_decay,
             eps=args.adam_epsilon,
             d0=args.dadaptation_d0,
+            growth_rate=args.dadaptation_growth_rate,
         )
 
         args.learning_rate_unet = 1.0
         args.learning_rate_text = 1.0
         args.learning_rate_emb = 1.0
+    elif args.optimizer == "dlion":
+        raise ImportError("DLion has not been merged into dadaptation yet")
     else:
-        raise ValueError(f"Unknown --optimizer \"{args.optimizer}\"")
+        raise ValueError(f'Unknown --optimizer "{args.optimizer}"')
 
     trainer = partial(
         train,
@@ -1026,25 +1060,33 @@ def main():
 
     if args.run_pti and len(placeholder_tokens) != 0:
         embeddings = ensure_embeddings()
-        
-        filter_tokens = [token for token in args.filter_tokens if token in placeholder_tokens]
+
+        filter_tokens = [
+            token for token in args.filter_tokens if token in placeholder_tokens
+        ]
 
         pti_datamodule = create_datamodule(
             valid_set_size=0,
             batch_size=args.train_batch_size,
-            filter=partial(keyword_filter, filter_tokens, args.collection, args.exclude_collections),
+            filter=partial(
+                keyword_filter, filter_tokens, args.collection, args.exclude_collections
+            ),
         )
         pti_datamodule.setup()
 
         num_train_epochs = args.num_train_epochs
         pti_sample_frequency = args.sample_frequency
         if num_train_epochs is None:
-            num_train_epochs = math.ceil(
-                args.num_train_steps / len(pti_datamodule.train_dataset)
-            ) * args.gradient_accumulation_steps
-            pti_sample_frequency = math.ceil(num_train_epochs * (pti_sample_frequency / args.num_train_steps))
+            num_train_epochs = (
+                math.ceil(args.num_train_steps / len(pti_datamodule.train_dataset))
+                * args.gradient_accumulation_steps
+            )
+            pti_sample_frequency = math.ceil(
+                num_train_epochs * (pti_sample_frequency / args.num_train_steps)
+            )
         num_training_steps_per_epoch = math.ceil(
-            len(pti_datamodule.train_dataset) / args.gradient_accumulation_steps)
+            len(pti_datamodule.train_dataset) / args.gradient_accumulation_steps
+        )
         num_train_steps = num_training_steps_per_epoch * num_train_epochs
         if args.sample_num is not None:
             pti_sample_frequency = math.ceil(num_train_epochs / args.sample_num)
@@ -1060,11 +1102,15 @@ def main():
         print(f"============ PTI ============")
         print("")
 
-        pti_optimizer = create_optimizer([{
-            "params": text_encoder.text_model.embeddings.token_embedding.parameters(),
-            "lr": args.learning_rate_emb,
-            "weight_decay": 0,
-        }])
+        pti_optimizer = create_optimizer(
+            [
+                {
+                    "params": text_encoder.text_model.embeddings.token_embedding.parameters(),
+                    "lr": args.learning_rate_emb,
+                    "weight_decay": 0,
+                }
+            ]
+        )
 
         pti_lr_scheduler = create_lr_scheduler(
             "constant_with_warmup",
@@ -1113,11 +1159,16 @@ def main():
     num_train_epochs = args.num_train_epochs
     lora_sample_frequency = args.sample_frequency
     if num_train_epochs is None:
-        num_train_epochs = math.ceil(
-            args.num_train_steps / len(lora_datamodule.train_dataset)
-        ) * args.gradient_accumulation_steps
-        lora_sample_frequency = math.ceil(num_train_epochs * (lora_sample_frequency / args.num_train_steps))
-    num_training_steps_per_epoch = math.ceil(len(lora_datamodule.train_dataset) / args.gradient_accumulation_steps)
+        num_train_epochs = (
+            math.ceil(args.num_train_steps / len(lora_datamodule.train_dataset))
+            * args.gradient_accumulation_steps
+        )
+        lora_sample_frequency = math.ceil(
+            num_train_epochs * (lora_sample_frequency / args.num_train_steps)
+        )
+    num_training_steps_per_epoch = math.ceil(
+        len(lora_datamodule.train_dataset) / args.gradient_accumulation_steps
+    )
     num_train_steps = num_training_steps_per_epoch * num_train_epochs
     if args.sample_num is not None:
         lora_sample_frequency = math.ceil(num_train_epochs / args.sample_num)
@@ -1131,7 +1182,6 @@ def main():
 
     training_iter = 0
     auto_cycles = list(args.auto_cycles)
-    learning_rate_emb = args.learning_rate_emb
     learning_rate_unet = args.learning_rate_unet
     learning_rate_text = args.learning_rate_text
     lr_scheduler = args.lr_scheduler
@@ -1145,21 +1195,15 @@ def main():
 
     params_to_optimize = [
         {
-            "params": (
-                param
-                for param in unet.parameters()
-                if param.requires_grad
-            ),
+            "params": (param for param in unet.parameters() if param.requires_grad),
             "lr": learning_rate_unet,
         },
         {
             "params": (
-                param
-                for param in text_encoder.parameters()
-                if param.requires_grad
+                param for param in text_encoder.parameters() if param.requires_grad
             ),
             "lr": learning_rate_text,
-        }
+        },
     ]
     group_labels = ["unet", "text"]
 
@@ -1169,19 +1213,26 @@ def main():
         if len(auto_cycles) != 0:
             response = auto_cycles.pop(0)
         else:
-            response = input("\n### Choose action: [o] one_cycle, [w] warmup, [c] constant, [d] decay, [s] stop \n--> ")
+            response = input(
+                "\n### Choose action: [o] one_cycle, [w] warmup, [c] constant, [d] decay, [s] stop \n--> "
+            )
 
         if response.lower().strip() == "o":
-            if args.learning_rate_emb is not None:
-                learning_rate_emb = args.learning_rate_emb * 2
             if args.learning_rate_unet is not None:
-                learning_rate_unet = args.learning_rate_unet * 2
+                learning_rate_unet = (
+                    args.learning_rate_unet * 2 * (args.cycle_decay**training_iter)
+                )
             if args.learning_rate_text is not None:
-                learning_rate_text = args.learning_rate_text * 2
+                learning_rate_text = (
+                    args.learning_rate_text * 2 * (args.cycle_decay**training_iter)
+                )
         else:
-            learning_rate_emb = args.learning_rate_emb
-            learning_rate_unet = args.learning_rate_unet
-            learning_rate_text = args.learning_rate_text
+            learning_rate_unet = args.learning_rate_unet * (
+                args.cycle_decay**training_iter
+            )
+            learning_rate_text = args.learning_rate_text * (
+                args.cycle_decay**training_iter
+            )
 
         if response.lower().strip() == "o":
             lr_scheduler = "one_cycle"
@@ -1204,9 +1255,11 @@ def main():
         print("")
         print(f"============ LoRA cycle {training_iter + 1}: {response} ============")
         print("")
-        
-        for group, lr in zip(lora_optimizer.param_groups, [learning_rate_unet, learning_rate_text]):
-            group['lr'] = lr
+
+        for group, lr in zip(
+            lora_optimizer.param_groups, [learning_rate_unet, learning_rate_text]
+        ):
+            group["lr"] = lr
 
         lora_lr_scheduler = create_lr_scheduler(
             lr_scheduler,
@@ -1218,7 +1271,9 @@ def main():
             warmup_epochs=lr_warmup_epochs,
         )
 
-        lora_checkpoint_output_dir = output_dir / lora_project / f"model_{training_iter}"
+        lora_checkpoint_output_dir = (
+            output_dir / lora_project / f"model_{training_iter}"
+        )
 
         trainer(
             strategy=lora_strategy,
@@ -1246,12 +1301,6 @@ def main():
         )
 
         training_iter += 1
-        if learning_rate_emb is not None:
-            learning_rate_emb *= args.cycle_decay
-        if learning_rate_unet is not None:
-            learning_rate_unet *= args.cycle_decay
-        if learning_rate_text is not None:
-            learning_rate_text *= args.cycle_decay
 
     accelerator.end_training()
 
diff --git a/train_ti.py b/train_ti.py
index f60e3e5..c6f0b3a 100644
--- a/train_ti.py
+++ b/train_ti.py
@@ -32,7 +32,7 @@ from util.files import load_config, load_embeddings_from_dir
 
 logger = get_logger(__name__)
 
-warnings.filterwarnings('ignore')
+warnings.filterwarnings("ignore")
 
 
 torch.backends.cuda.matmul.allow_tf32 = True
@@ -46,9 +46,7 @@ hidet.torch.dynamo_config.search_space(0)
 
 
 def parse_args():
-    parser = argparse.ArgumentParser(
-        description="Simple example of a training script."
-    )
+    parser = argparse.ArgumentParser(description="Simple example of a training script.")
     parser.add_argument(
         "--pretrained_model_name_or_path",
         type=str,
@@ -65,12 +63,12 @@ def parse_args():
         "--train_data_file",
         type=str,
         default=None,
-        help="A CSV file containing the training data."
+        help="A CSV file containing the training data.",
     )
     parser.add_argument(
         "--train_data_template",
         type=str,
-        nargs='*',
+        nargs="*",
         default="template",
     )
     parser.add_argument(
@@ -80,59 +78,47 @@ def parse_args():
         help="The name of the current project.",
     )
     parser.add_argument(
-        "--auto_cycles",
-        type=str,
-        default="o",
-        help="Cycles to run automatically."
+        "--auto_cycles", type=str, default="o", help="Cycles to run automatically."
     )
     parser.add_argument(
-        "--cycle_decay",
-        type=float,
-        default=1.0,
-        help="Learning rate decay per cycle."
+        "--cycle_decay", type=float, default=1.0, help="Learning rate decay per cycle."
     )
     parser.add_argument(
         "--placeholder_tokens",
         type=str,
-        nargs='*',
+        nargs="*",
         help="A token to use as a placeholder for the concept.",
     )
     parser.add_argument(
         "--initializer_tokens",
         type=str,
-        nargs='*',
-        help="A token to use as initializer word."
+        nargs="*",
+        help="A token to use as initializer word.",
     )
     parser.add_argument(
-        "--filter_tokens",
-        type=str,
-        nargs='*',
-        help="Tokens to filter the dataset by."
+        "--filter_tokens", type=str, nargs="*", help="Tokens to filter the dataset by."
     )
     parser.add_argument(
         "--initializer_noise",
         type=float,
         default=0,
-        help="Noise to apply to the initializer word"
+        help="Noise to apply to the initializer word",
     )
     parser.add_argument(
         "--alias_tokens",
         type=str,
-        nargs='*',
+        nargs="*",
         default=[],
-        help="Tokens to create an alias for."
+        help="Tokens to create an alias for.",
     )
     parser.add_argument(
         "--inverted_initializer_tokens",
         type=str,
-        nargs='*',
-        help="A token to use as initializer word."
+        nargs="*",
+        help="A token to use as initializer word.",
     )
     parser.add_argument(
-        "--num_vectors",
-        type=int,
-        nargs='*',
-        help="Number of vectors per embedding."
+        "--num_vectors", type=int, nargs="*", help="Number of vectors per embedding."
     )
     parser.add_argument(
         "--sequential",
@@ -147,7 +133,7 @@ def parse_args():
         "--num_class_images",
         type=int,
         default=0,
-        help="How many class images to generate."
+        help="How many class images to generate.",
     )
     parser.add_argument(
         "--class_image_dir",
@@ -158,7 +144,7 @@ def parse_args():
     parser.add_argument(
         "--exclude_collections",
         type=str,
-        nargs='*',
+        nargs="*",
         help="Exclude all items with a listed collection.",
     )
     parser.add_argument(
@@ -181,14 +167,11 @@ def parse_args():
     parser.add_argument(
         "--collection",
         type=str,
-        nargs='*',
+        nargs="*",
         help="A collection to filter the dataset.",
     )
     parser.add_argument(
-        "--seed",
-        type=int,
-        default=None,
-        help="A seed for reproducible training."
+        "--seed", type=int, default=None, help="A seed for reproducible training."
     )
     parser.add_argument(
         "--resolution",
@@ -244,7 +227,7 @@ def parse_args():
         type=str,
         default="auto",
         choices=["all", "trailing", "leading", "between", "auto", "off"],
-        help='Vector shuffling algorithm.',
+        help="Vector shuffling algorithm.",
     )
     parser.add_argument(
         "--offset_noise_strength",
@@ -256,18 +239,10 @@ def parse_args():
         "--input_pertubation",
         type=float,
         default=0,
-        help="The scale of input pretubation. Recommended 0.1."
-    )
-    parser.add_argument(
-        "--num_train_epochs",
-        type=int,
-        default=None
-    )
-    parser.add_argument(
-        "--num_train_steps",
-        type=int,
-        default=2000
+        help="The scale of input pretubation. Recommended 0.1.",
     )
+    parser.add_argument("--num_train_epochs", type=int, default=None)
+    parser.add_argument("--num_train_steps", type=int, default=2000)
     parser.add_argument(
         "--gradient_accumulation_steps",
         type=int,
@@ -299,27 +274,31 @@ def parse_args():
         "--lr_scheduler",
         type=str,
         default="one_cycle",
-        choices=["linear", "cosine", "cosine_with_restarts", "polynomial",
-                 "constant", "constant_with_warmup", "one_cycle"],
-        help='The scheduler type to use.',
+        choices=[
+            "linear",
+            "cosine",
+            "cosine_with_restarts",
+            "polynomial",
+            "constant",
+            "constant_with_warmup",
+            "one_cycle",
+        ],
+        help="The scheduler type to use.",
     )
     parser.add_argument(
         "--lr_warmup_epochs",
         type=int,
         default=10,
-        help="Number of steps for the warmup in the lr scheduler."
+        help="Number of steps for the warmup in the lr scheduler.",
     )
     parser.add_argument(
-        "--lr_mid_point",
-        type=float,
-        default=0.3,
-        help="OneCycle schedule mid point."
+        "--lr_mid_point", type=float, default=0.3, help="OneCycle schedule mid point."
     )
     parser.add_argument(
         "--lr_cycles",
         type=int,
         default=None,
-        help="Number of restart cycles in the lr scheduler."
+        help="Number of restart cycles in the lr scheduler.",
     )
     parser.add_argument(
         "--lr_warmup_func",
@@ -331,7 +310,7 @@ def parse_args():
         "--lr_warmup_exp",
         type=int,
         default=1,
-        help='If lr_warmup_func is "cos", exponent to modify the function'
+        help='If lr_warmup_func is "cos", exponent to modify the function',
     )
     parser.add_argument(
         "--lr_annealing_func",
@@ -343,89 +322,67 @@ def parse_args():
         "--lr_annealing_exp",
         type=int,
         default=1,
-        help='If lr_annealing_func is "half_cos" or "cos", exponent to modify the function'
+        help='If lr_annealing_func is "half_cos" or "cos", exponent to modify the function',
     )
     parser.add_argument(
         "--lr_min_lr",
         type=float,
         default=0.04,
-        help="Minimum learning rate in the lr scheduler."
+        help="Minimum learning rate in the lr scheduler.",
     )
     parser.add_argument(
-        "--use_ema",
-        action="store_true",
-        help="Whether to use EMA model."
-    )
-    parser.add_argument(
-        "--ema_inv_gamma",
-        type=float,
-        default=1.0
-    )
-    parser.add_argument(
-        "--ema_power",
-        type=float,
-        default=4/5
-    )
-    parser.add_argument(
-        "--ema_max_decay",
-        type=float,
-        default=0.9999
-    )
-    parser.add_argument(
-        "--min_snr_gamma",
-        type=int,
-        default=5,
-        help="MinSNR gamma."
+        "--use_ema", action="store_true", help="Whether to use EMA model."
     )
+    parser.add_argument("--ema_inv_gamma", type=float, default=1.0)
+    parser.add_argument("--ema_power", type=float, default=4 / 5)
+    parser.add_argument("--ema_max_decay", type=float, default=0.9999)
+    parser.add_argument("--min_snr_gamma", type=int, default=5, help="MinSNR gamma.")
     parser.add_argument(
         "--schedule_sampler",
         type=str,
         default="uniform",
         choices=["uniform", "loss-second-moment"],
-        help="Noise schedule sampler."
+        help="Noise schedule sampler.",
     )
     parser.add_argument(
         "--optimizer",
         type=str,
         default="adan",
         choices=["adam", "adam8bit", "adan", "lion", "dadam", "dadan", "adafactor"],
-        help='Optimizer to use'
+        help="Optimizer to use",
     )
     parser.add_argument(
         "--dadaptation_d0",
         type=float,
         default=1e-6,
-        help="The d0 parameter for Dadaptation optimizers."
+        help="The d0 parameter for Dadaptation optimizers.",
     )
     parser.add_argument(
         "--adam_beta1",
         type=float,
         default=None,
-        help="The beta1 parameter for the Adam optimizer."
+        help="The beta1 parameter for the Adam optimizer.",
     )
     parser.add_argument(
         "--adam_beta2",
         type=float,
         default=None,
-        help="The beta2 parameter for the Adam optimizer."
+        help="The beta2 parameter for the Adam optimizer.",
     )
     parser.add_argument(
-        "--adam_weight_decay",
-        type=float,
-        default=2e-2,
-        help="Weight decay to use."
+        "--adam_weight_decay", type=float, default=2e-2, help="Weight decay to use."
     )
     parser.add_argument(
         "--adam_epsilon",
         type=float,
         default=1e-08,
-        help="Epsilon value for the Adam optimizer"
+        help="Epsilon value for the Adam optimizer",
     )
     parser.add_argument(
         "--adam_amsgrad",
         type=bool,
         default=False,
-        help="Amsgrad value for the Adam optimizer"
+        help="Amsgrad value for the Adam optimizer",
     )
     parser.add_argument(
         "--mixed_precision",
@@ -456,7 +413,7 @@ def parse_args():
     )
     parser.add_argument(
         "--no_milestone_checkpoints",
-        action='store_true',
+        action="store_true",
         help="If checkpoints are saved on maximum accuracy",
     )
     parser.add_argument(
@@ -493,25 +450,25 @@ def parse_args():
         "--valid_set_size",
         type=int,
         default=None,
-        help="Number of images in the validation dataset."
+        help="Number of images in the validation dataset.",
     )
     parser.add_argument(
         "--train_set_pad",
         type=int,
         default=None,
-        help="The number to fill train dataset items up to."
+        help="The number to fill train dataset items up to.",
     )
     parser.add_argument(
         "--valid_set_pad",
         type=int,
         default=None,
-        help="The number to fill validation dataset items up to."
+        help="The number to fill validation dataset items up to.",
     )
     parser.add_argument(
         "--train_batch_size",
         type=int,
         default=1,
-        help="Batch size (per device) for the training dataloader."
+        help="Batch size (per device) for the training dataloader.",
     )
     parser.add_argument(
         "--sample_steps",
@@ -523,14 +480,9 @@ def parse_args():
         "--prior_loss_weight",
         type=float,
         default=1.0,
-        help="The weight of prior preservation loss."
-    )
-    parser.add_argument(
-        "--emb_alpha",
-        type=float,
-        default=1.0,
-        help="Embedding alpha"
+        help="The weight of prior preservation loss.",
     )
+    parser.add_argument("--emb_alpha", type=float, default=1.0, help="Embedding alpha")
     parser.add_argument(
         "--emb_dropout",
         type=float,
@@ -538,21 +490,13 @@ def parse_args():
         help="Embedding dropout probability.",
     )
     parser.add_argument(
-        "--use_emb_decay",
-        action="store_true",
-        help="Whether to use embedding decay."
+        "--use_emb_decay", action="store_true", help="Whether to use embedding decay."
     )
     parser.add_argument(
-        "--emb_decay_target",
-        default=0.4,
-        type=float,
-        help="Embedding decay target."
+        "--emb_decay_target", default=0.4, type=float, help="Embedding decay target."
     )
     parser.add_argument(
-        "--emb_decay",
-        default=1e+2,
-        type=float,
-        help="Embedding decay factor."
+        "--emb_decay", default=1e2, type=float, help="Embedding decay factor."
     )
     parser.add_argument(
         "--noise_timesteps",
@@ -563,7 +507,7 @@ def parse_args():
         "--resume_from",
         type=str,
         default=None,
-        help="Path to a directory to resume training from (ie, logs/token_name/2022-09-22T23-36-27)"
+        help="Path to a directory to resume training from (ie, logs/token_name/2022-09-22T23-36-27)",
     )
     parser.add_argument(
         "--global_step",
@@ -574,7 +518,7 @@ def parse_args():
         "--config",
         type=str,
         default=None,
-        help="Path to a JSON configuration file containing arguments for invoking this script."
+        help="Path to a JSON configuration file containing arguments for invoking this script.",
     )
 
     args = parser.parse_args()
@@ -595,29 +539,44 @@ def parse_args():
         args.placeholder_tokens = [args.placeholder_tokens]
 
     if isinstance(args.initializer_tokens, str):
-        args.initializer_tokens = [args.initializer_tokens] * len(args.placeholder_tokens)
+        args.initializer_tokens = [args.initializer_tokens] * len(
+            args.placeholder_tokens
+        )
 
     if len(args.placeholder_tokens) == 0:
-        args.placeholder_tokens = [f"<*{i}>" for i in range(len(args.initializer_tokens))]
+        args.placeholder_tokens = [
+            f"<*{i}>" for i in range(len(args.initializer_tokens))
+        ]
 
     if len(args.initializer_tokens) == 0:
         args.initializer_tokens = args.placeholder_tokens.copy()
 
     if len(args.placeholder_tokens) != len(args.initializer_tokens):
-        raise ValueError("--placeholder_tokens and --initializer_tokens must have the same number of items")
+        raise ValueError(
+            "--placeholder_tokens and --initializer_tokens must have the same number of items"
+        )
 
     if isinstance(args.inverted_initializer_tokens, str):
-        args.inverted_initializer_tokens = [args.inverted_initializer_tokens] * len(args.placeholder_tokens)
+        args.inverted_initializer_tokens = [args.inverted_initializer_tokens] * len(
+            args.placeholder_tokens
+        )
 
-    if isinstance(args.inverted_initializer_tokens, list) and len(args.inverted_initializer_tokens) != 0:
+    if (
+        isinstance(args.inverted_initializer_tokens, list)
+        and len(args.inverted_initializer_tokens) != 0
+    ):
         args.placeholder_tokens += [f"inv_{t}" for t in args.placeholder_tokens]
         args.initializer_tokens += args.inverted_initializer_tokens
 
     if isinstance(args.num_vectors, int):
         args.num_vectors = [args.num_vectors] * len(args.placeholder_tokens)
 
-    if isinstance(args.num_vectors, list) and len(args.placeholder_tokens) != len(args.num_vectors):
-        raise ValueError("--placeholder_tokens and --num_vectors must have the same number of items")
+    if isinstance(args.num_vectors, list) and len(args.placeholder_tokens) != len(
+        args.num_vectors
+    ):
+        raise ValueError(
+            "--placeholder_tokens and --num_vectors must have the same number of items"
+        )
 
     if args.alias_tokens is None:
         args.alias_tokens = []
@@ -639,16 +598,22 @@ def parse_args():
         ]
 
         if isinstance(args.train_data_template, str):
-            args.train_data_template = [args.train_data_template] * len(args.placeholder_tokens)
+            args.train_data_template = [args.train_data_template] * len(
+                args.placeholder_tokens
+            )
 
         if len(args.placeholder_tokens) != len(args.train_data_template):
-            raise ValueError("--placeholder_tokens and --train_data_template must have the same number of items")
+            raise ValueError(
+                "--placeholder_tokens and --train_data_template must have the same number of items"
+            )
 
         if args.num_vectors is None:
             args.num_vectors = [None] * len(args.placeholder_tokens)
     else:
         if isinstance(args.train_data_template, list):
-            raise ValueError("--train_data_template can't be a list in simultaneous mode")
+            raise ValueError(
+                "--train_data_template can't be a list in simultaneous mode"
+            )
 
     if isinstance(args.collection, str):
         args.collection = [args.collection]
@@ -660,13 +625,13 @@ def parse_args():
         raise ValueError("You must specify --output_dir")
 
     if args.adam_beta1 is None:
-        if args.optimizer == 'lion':
+        if args.optimizer == "lion":
             args.adam_beta1 = 0.95
         else:
             args.adam_beta1 = 0.9
 
     if args.adam_beta2 is None:
-        if args.optimizer == 'lion':
+        if args.optimizer == "lion":
             args.adam_beta2 = 0.98
         else:
             args.adam_beta2 = 0.999
@@ -679,13 +644,13 @@ def main():
 
     global_step_offset = args.global_step
     now = datetime.datetime.now().strftime("%Y-%m-%dT%H-%M-%S")
-    output_dir = Path(args.output_dir)/slugify(args.project)/now
+    output_dir = Path(args.output_dir) / slugify(args.project) / now
     output_dir.mkdir(parents=True, exist_ok=True)
 
     accelerator = Accelerator(
         log_with=LoggerType.TENSORBOARD,
         project_dir=f"{output_dir}",
-        mixed_precision=args.mixed_precision
+        mixed_precision=args.mixed_precision,
     )
 
     weight_dtype = torch.float32
@@ -703,9 +668,15 @@ def main():
 
     save_args(output_dir, args)
 
-    tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler = get_models(args.pretrained_model_name_or_path)
-    embeddings = patch_managed_embeddings(text_encoder, args.emb_alpha, args.emb_dropout)
-    schedule_sampler = create_named_schedule_sampler(args.schedule_sampler, noise_scheduler.config.num_train_timesteps)
+    tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler = get_models(
+        args.pretrained_model_name_or_path
+    )
+    embeddings = patch_managed_embeddings(
+        text_encoder, args.emb_alpha, args.emb_dropout
+    )
+    schedule_sampler = create_named_schedule_sampler(
+        args.schedule_sampler, noise_scheduler.config.num_train_timesteps
+    )
 
     tokenizer.set_use_vector_shuffle(args.vector_shuffle)
     tokenizer.set_dropout(args.vector_dropout)
@@ -717,16 +688,16 @@ def main():
         unet.enable_xformers_memory_efficient_attention()
     elif args.compile_unet:
         unet.mid_block.attentions[0].transformer_blocks[0].attn1._use_2_0_attn = False
-    
+
         proc = AttnProcessor()
-    
+
         def fn_recursive_set_proc(module: torch.nn.Module):
             if hasattr(module, "processor"):
                 module.processor = proc
-    
+
             for child in module.children():
                 fn_recursive_set_proc(child)
-    
+
         fn_recursive_set_proc(unet)
 
     if args.gradient_checkpointing:
@@ -751,18 +722,24 @@ def main():
             tokenizer=tokenizer,
             embeddings=embeddings,
             placeholder_tokens=alias_placeholder_tokens,
-            initializer_tokens=alias_initializer_tokens
+            initializer_tokens=alias_initializer_tokens,
         )
         embeddings.persist()
-        print(f"Added {len(added_tokens)} aliases: {list(zip(alias_placeholder_tokens, added_tokens, alias_initializer_tokens, added_ids))}")
+        print(
+            f"Added {len(added_tokens)} aliases: {list(zip(alias_placeholder_tokens, added_tokens, alias_initializer_tokens, added_ids))}"
+        )
 
     if args.embeddings_dir is not None:
         embeddings_dir = Path(args.embeddings_dir)
         if not embeddings_dir.exists() or not embeddings_dir.is_dir():
             raise ValueError("--embeddings_dir must point to an existing directory")
 
-        added_tokens, added_ids = load_embeddings_from_dir(tokenizer, embeddings, embeddings_dir)
-        print(f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}")
+        added_tokens, added_ids = load_embeddings_from_dir(
+            tokenizer, embeddings, embeddings_dir
+        )
+        print(
+            f"Added {len(added_tokens)} tokens from embeddings dir: {list(zip(added_tokens, added_ids))}"
+        )
 
         if args.train_dir_embeddings:
             args.placeholder_tokens = added_tokens
@@ -772,19 +749,23 @@ def main():
 
     if args.scale_lr:
         args.learning_rate = (
-            args.learning_rate * args.gradient_accumulation_steps *
-            args.train_batch_size * accelerator.num_processes
+            args.learning_rate
+            * args.gradient_accumulation_steps
+            * args.train_batch_size
+            * accelerator.num_processes
         )
 
     if args.find_lr:
         args.learning_rate = 1e-5
         args.lr_scheduler = "exponential_growth"
 
-    if args.optimizer == 'adam8bit':
+    if args.optimizer == "adam8bit":
         try:
             import bitsandbytes as bnb
         except ImportError:
-            raise ImportError("To use 8-bit Adam, please install the bitsandbytes library: `pip install bitsandbytes`.")
+            raise ImportError(
+                "To use 8-bit Adam, please install the bitsandbytes library: `pip install bitsandbytes`."
+            )
 
         create_optimizer = partial(
             bnb.optim.AdamW8bit,
@@ -793,7 +774,7 @@ def main():
             eps=args.adam_epsilon,
             amsgrad=args.adam_amsgrad,
         )
-    elif args.optimizer == 'adam':
+    elif args.optimizer == "adam":
         create_optimizer = partial(
             torch.optim.AdamW,
             betas=(args.adam_beta1, args.adam_beta2),
@@ -801,11 +782,13 @@ def main():
             eps=args.adam_epsilon,
             amsgrad=args.adam_amsgrad,
         )
-    elif args.optimizer == 'adan':
+    elif args.optimizer == "adan":
         try:
             import timm.optim
         except ImportError:
-            raise ImportError("To use Adan, please install the PyTorch Image Models library: `pip install timm`.")
+            raise ImportError(
+                "To use Adan, please install the PyTorch Image Models library: `pip install timm`."
+            )
 
         create_optimizer = partial(
             timm.optim.Adan,
@@ -813,11 +796,13 @@ def main():
             eps=args.adam_epsilon,
             no_prox=True,
         )
-    elif args.optimizer == 'lion':
+    elif args.optimizer == "lion":
         try:
             import lion_pytorch
         except ImportError:
-            raise ImportError("To use Lion, please install the lion_pytorch library: `pip install lion-pytorch`.")
+            raise ImportError(
+                "To use Lion, please install the lion_pytorch library: `pip install lion-pytorch`."
+            )
 
         create_optimizer = partial(
             lion_pytorch.Lion,
@@ -825,7 +810,7 @@ def main():
             weight_decay=args.adam_weight_decay,
             use_triton=True,
         )
-    elif args.optimizer == 'adafactor':
+    elif args.optimizer == "adafactor":
         create_optimizer = partial(
             transformers.optimization.Adafactor,
             weight_decay=args.adam_weight_decay,
@@ -837,11 +822,13 @@ def main():
         args.lr_scheduler = "adafactor"
         args.lr_min_lr = args.learning_rate
         args.learning_rate = None
-    elif args.optimizer == 'dadam':
+    elif args.optimizer == "dadam":
         try:
             import dadaptation
         except ImportError:
-            raise ImportError("To use DAdaptAdam, please install the dadaptation library: `pip install dadaptation`.")
+            raise ImportError(
+                "To use DAdaptAdam, please install the dadaptation library: `pip install dadaptation`."
+            )
 
         create_optimizer = partial(
             dadaptation.DAdaptAdam,
@@ -851,11 +838,13 @@ def main():
             decouple=True,
             d0=args.dadaptation_d0,
         )
-    elif args.optimizer == 'dadan':
+    elif args.optimizer == "dadan":
         try:
             import dadaptation
         except ImportError:
-            raise ImportError("To use DAdaptAdan, please install the dadaptation library: `pip install dadaptation`.")
+            raise ImportError(
+                "To use DAdaptAdan, please install the dadaptation library: `pip install dadaptation`."
+            )
 
         create_optimizer = partial(
             dadaptation.DAdaptAdan,
@@ -864,7 +853,7 @@ def main():
             d0=args.dadaptation_d0,
         )
     else:
-        raise ValueError(f"Unknown --optimizer \"{args.optimizer}\"")
+        raise ValueError(f'Unknown --optimizer "{args.optimizer}"')
 
     trainer = partial(
         train,
@@ -904,10 +893,21 @@ def main():
         sample_image_size=args.sample_image_size,
     )
 
+    optimizer = create_optimizer(
+        text_encoder.text_model.embeddings.token_embedding.parameters(),
+        lr=learning_rate,
+    )
+
     data_generator = torch.Generator(device="cpu").manual_seed(args.seed)
     data_npgenerator = np.random.default_rng(args.seed)
 
-    def run(i: int, placeholder_tokens: list[str], initializer_tokens: list[str], num_vectors: Union[int, list[int]], data_template: str):
+    def run(
+        i: int,
+        placeholder_tokens: list[str],
+        initializer_tokens: list[str],
+        num_vectors: Union[int, list[int]],
+        data_template: str,
+    ):
         placeholder_token_ids, initializer_token_ids = add_placeholder_tokens(
             tokenizer=tokenizer,
             embeddings=embeddings,
@@ -917,14 +917,23 @@ def main():
             initializer_noise=args.initializer_noise,
         )
 
-        stats = list(zip(placeholder_tokens, placeholder_token_ids, initializer_tokens, initializer_token_ids))
+        stats = list(
+            zip(
+                placeholder_tokens,
+                placeholder_token_ids,
+                initializer_tokens,
+                initializer_token_ids,
+            )
+        )
 
         print("")
         print(f"============ TI batch {i + 1} ============")
         print("")
         print(stats)
 
-        filter_tokens = [token for token in args.filter_tokens if token in placeholder_tokens]
+        filter_tokens = [
+            token for token in args.filter_tokens if token in placeholder_tokens
+        ]
 
         datamodule = VlpnDataModule(
             data_file=args.train_data_file,
@@ -945,7 +954,9 @@ def main():
             valid_set_size=args.valid_set_size,
             train_set_pad=args.train_set_pad,
             valid_set_pad=args.valid_set_pad,
-            filter=partial(keyword_filter, filter_tokens, args.collection, args.exclude_collections),
+            filter=partial(
+                keyword_filter, filter_tokens, args.collection, args.exclude_collections
+            ),
             dtype=weight_dtype,
             generator=data_generator,
             npgenerator=data_npgenerator,
@@ -955,11 +966,16 @@ def main():
         num_train_epochs = args.num_train_epochs
         sample_frequency = args.sample_frequency
         if num_train_epochs is None:
-            num_train_epochs = math.ceil(
-                args.num_train_steps / len(datamodule.train_dataset)
-            ) * args.gradient_accumulation_steps
-            sample_frequency = math.ceil(num_train_epochs * (sample_frequency / args.num_train_steps))
-        num_training_steps_per_epoch = math.ceil(len(datamodule.train_dataset) / args.gradient_accumulation_steps)
+            num_train_epochs = (
+                math.ceil(args.num_train_steps / len(datamodule.train_dataset))
+                * args.gradient_accumulation_steps
+            )
+            sample_frequency = math.ceil(
+                num_train_epochs * (sample_frequency / args.num_train_steps)
+            )
+        num_training_steps_per_epoch = math.ceil(
+            len(datamodule.train_dataset) / args.gradient_accumulation_steps
+        )
         num_train_steps = num_training_steps_per_epoch * num_train_epochs
         if args.sample_num is not None:
             sample_frequency = math.ceil(num_train_epochs / args.sample_num)
@@ -988,7 +1004,8 @@ def main():
                 response = auto_cycles.pop(0)
             else:
                 response = input(
-                    "\n### Choose action: [o] one_cycle, [w] warmup, [c] constant, [d] decay, [s] stop \n--> ")
+                    "\n### Choose action: [o] one_cycle, [w] warmup, [c] constant, [d] decay, [s] stop \n--> "
+                )
 
             if response.lower().strip() == "o":
                 if args.learning_rate is not None:
@@ -1018,10 +1035,8 @@ def main():
             print(f"------------ TI cycle {training_iter + 1}: {response} ------------")
             print("")
 
-            optimizer = create_optimizer(
-                text_encoder.text_model.embeddings.token_embedding.parameters(),
-                lr=learning_rate,
-            )
+            for group, lr in zip(optimizer.param_groups, [learning_rate]):
+                group["lr"] = lr
 
             lr_scheduler = get_scheduler(
                 lr_scheduler,
@@ -1040,7 +1055,9 @@ def main():
                 mid_point=args.lr_mid_point,
             )
 
-            checkpoint_output_dir = output_dir / project / f"checkpoints_{training_iter}"
+            checkpoint_output_dir = (
+                output_dir / project / f"checkpoints_{training_iter}"
+            )
 
             trainer(
                 train_dataloader=datamodule.train_dataloader,
@@ -1070,14 +1087,20 @@ def main():
         accelerator.end_training()
 
     if not args.sequential:
-        run(0, args.placeholder_tokens, args.initializer_tokens, args.num_vectors, args.train_data_template)
+        run(
+            0,
+            args.placeholder_tokens,
+            args.initializer_tokens,
+            args.num_vectors,
+            args.train_data_template,
+        )
     else:
         for i, placeholder_token, initializer_token, num_vectors, data_template in zip(
             range(len(args.placeholder_tokens)),
             args.placeholder_tokens,
             args.initializer_tokens,
             args.num_vectors,
-            args.train_data_template
+            args.train_data_template,
         ):
             run(i, [placeholder_token], [initializer_token], num_vectors, data_template)
             embeddings.persist()
diff --git a/training/functional.py b/training/functional.py
index fd3f9f4..f68faf9 100644
--- a/training/functional.py
+++ b/training/functional.py
@@ -14,7 +14,13 @@ import numpy as np
 
 from accelerate import Accelerator
 from transformers import CLIPTextModel
-from diffusers import AutoencoderKL, UNet2DConditionModel, DDPMScheduler, UniPCMultistepScheduler, SchedulerMixin
+from diffusers import (
+    AutoencoderKL,
+    UNet2DConditionModel,
+    DDPMScheduler,
+    UniPCMultistepScheduler,
+    SchedulerMixin,
+)
 
 from tqdm.auto import tqdm
 
@@ -33,11 +39,12 @@ from util.noise import perlin_noise
 def const(result=None):
     def fn(*args, **kwargs):
         return result
+
     return fn
 
 
 @dataclass
-class TrainingCallbacks():
+class TrainingCallbacks:
     on_log: Callable[[], dict[str, Any]] = const({})
     on_train: Callable[[int], _GeneratorContextManager] = const(nullcontext())
     on_before_optimize: Callable[[int], Any] = const()
@@ -58,23 +65,36 @@ class TrainingStrategyPrepareCallable(Protocol):
         train_dataloader: DataLoader,
         val_dataloader: Optional[DataLoader],
         lr_scheduler: torch.optim.lr_scheduler._LRScheduler,
-        **kwargs
-    ) -> Tuple: ...
+        **kwargs,
+    ) -> Tuple:
+        ...
 
 
 @dataclass
-class TrainingStrategy():
+class TrainingStrategy:
     callbacks: Callable[..., TrainingCallbacks]
     prepare: TrainingStrategyPrepareCallable
 
 
 def get_models(pretrained_model_name_or_path: str, torch_dtype=torch.float32):
-    tokenizer = MultiCLIPTokenizer.from_pretrained(pretrained_model_name_or_path, subfolder='tokenizer')
-    text_encoder = CLIPTextModel.from_pretrained(pretrained_model_name_or_path, subfolder='text_encoder', torch_dtype=torch_dtype)
-    vae = AutoencoderKL.from_pretrained(pretrained_model_name_or_path, subfolder='vae', torch_dtype=torch_dtype)
-    unet = UNet2DConditionModel.from_pretrained(pretrained_model_name_or_path, subfolder='unet', torch_dtype=torch_dtype)
-    noise_scheduler = DDPMScheduler.from_pretrained(pretrained_model_name_or_path, subfolder='scheduler')
-    sample_scheduler = UniPCMultistepScheduler.from_pretrained(pretrained_model_name_or_path, subfolder='scheduler')
+    tokenizer = MultiCLIPTokenizer.from_pretrained(
+        pretrained_model_name_or_path, subfolder="tokenizer"
+    )
+    text_encoder = CLIPTextModel.from_pretrained(
+        pretrained_model_name_or_path, subfolder="text_encoder", torch_dtype=torch_dtype
+    )
+    vae = AutoencoderKL.from_pretrained(
+        pretrained_model_name_or_path, subfolder="vae", torch_dtype=torch_dtype
+    )
+    unet = UNet2DConditionModel.from_pretrained(
+        pretrained_model_name_or_path, subfolder="unet", torch_dtype=torch_dtype
+    )
+    noise_scheduler = DDPMScheduler.from_pretrained(
+        pretrained_model_name_or_path, subfolder="scheduler"
+    )
+    sample_scheduler = UniPCMultistepScheduler.from_pretrained(
+        pretrained_model_name_or_path, subfolder="scheduler"
+    )
 
     return tokenizer, text_encoder, vae, unet, noise_scheduler, sample_scheduler
 
@@ -113,7 +133,9 @@ def save_samples(
 
     generator = torch.Generator(device=accelerator.device).manual_seed(seed)
 
-    datasets: list[tuple[str, DataLoader, Optional[torch.Generator]]] = [("train", train_dataloader, None)]
+    datasets: list[tuple[str, DataLoader, Optional[torch.Generator]]] = [
+        ("train", train_dataloader, None)
+    ]
 
     if val_dataloader is not None:
         datasets.append(("stable", val_dataloader, generator))
@@ -124,17 +146,11 @@ def save_samples(
         file_path = output_dir / pool / f"step_{cycle}_{step}.jpg"
         file_path.parent.mkdir(parents=True, exist_ok=True)
 
-        batches = list(itertools.islice(itertools.cycle(data), batch_size * num_batches))
-        prompt_ids = [
-            prompt
-            for batch in batches
-            for prompt in batch["prompt_ids"]
-        ]
-        nprompt_ids = [
-            prompt
-            for batch in batches
-            for prompt in batch["nprompt_ids"]
-        ]
+        batches = list(
+            itertools.islice(itertools.cycle(data), batch_size * num_batches)
+        )
+        prompt_ids = [prompt for batch in batches for prompt in batch["prompt_ids"]]
+        nprompt_ids = [prompt for batch in batches for prompt in batch["nprompt_ids"]]
 
         with torch.inference_mode():
             for i in range(num_batches):
@@ -165,7 +181,9 @@ def save_samples(
                     pass
 
             image_grid = make_grid(all_samples.permute(0, 3, 1, 2), grid_cols)
-            image_grid = pipeline.numpy_to_pil(image_grid.unsqueeze(0).permute(0, 2, 3, 1).numpy())[0]
+            image_grid = pipeline.numpy_to_pil(
+                image_grid.unsqueeze(0).permute(0, 2, 3, 1).numpy()
+            )[0]
             image_grid.save(file_path, quality=85)
 
     del generator, pipeline
@@ -184,15 +202,17 @@ def generate_class_images(
     train_dataset: VlpnDataset,
     sample_batch_size: int,
     sample_image_size: int,
-    sample_steps: int
+    sample_steps: int,
 ):
-    missing_data = [item for item in train_dataset.items if not item.class_image_path.exists()]
+    missing_data = [
+        item for item in train_dataset.items if not item.class_image_path.exists()
+    ]
 
     if len(missing_data) == 0:
         return
 
     batched_data = [
-        missing_data[i:i+sample_batch_size]
+        missing_data[i : i + sample_batch_size]
         for i in range(0, len(missing_data), sample_batch_size)
     ]
 
@@ -216,7 +236,7 @@ def generate_class_images(
                 negative_prompt=nprompt,
                 height=sample_image_size,
                 width=sample_image_size,
-                num_inference_steps=sample_steps
+                num_inference_steps=sample_steps,
             ).images
 
             for i, image in enumerate(images):
@@ -245,8 +265,12 @@ def add_placeholder_tokens(
 
     embeddings.resize(len(tokenizer))
 
-    for (placeholder_token_id, initializer_token_id) in zip(placeholder_token_ids, initializer_token_ids):
-        embeddings.add_embed(placeholder_token_id, initializer_token_id, initializer_noise)
+    for placeholder_token_id, initializer_token_id in zip(
+        placeholder_token_ids, initializer_token_ids
+    ):
+        embeddings.add_embed(
+            placeholder_token_id, initializer_token_id, initializer_noise
+        )
 
     return placeholder_token_ids, initializer_token_ids
 
@@ -261,12 +285,16 @@ def compute_snr(timesteps, noise_scheduler):
 
     # Expand the tensors.
     # Adapted from https://github.com/TiankaiHang/Min-SNR-Diffusion-Training/blob/521b624bd70c67cee4bdf49225915f5945a872e3/guided_diffusion/gaussian_diffusion.py#L1026
-    sqrt_alphas_cumprod = sqrt_alphas_cumprod.to(device=timesteps.device)[timesteps].float()
+    sqrt_alphas_cumprod = sqrt_alphas_cumprod.to(device=timesteps.device)[
+        timesteps
+    ].float()
     while len(sqrt_alphas_cumprod.shape) < len(timesteps.shape):
         sqrt_alphas_cumprod = sqrt_alphas_cumprod[..., None]
     alpha = sqrt_alphas_cumprod.expand(timesteps.shape)
 
-    sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod.to(device=timesteps.device)[timesteps].float()
+    sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod.to(
+        device=timesteps.device
+    )[timesteps].float()
     while len(sqrt_one_minus_alphas_cumprod.shape) < len(timesteps.shape):
         sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod[..., None]
     sigma = sqrt_one_minus_alphas_cumprod.expand(timesteps.shape)
@@ -277,21 +305,22 @@ def compute_snr(timesteps, noise_scheduler):
 
 
 def get_original(
-    noise_scheduler,
-    model_output,
-    sample: torch.FloatTensor,
-    timesteps: torch.IntTensor
+    noise_scheduler, model_output, sample: torch.FloatTensor, timesteps: torch.IntTensor
 ):
     alphas_cumprod = noise_scheduler.alphas_cumprod
     sqrt_alphas_cumprod = alphas_cumprod**0.5
     sqrt_one_minus_alphas_cumprod = (1.0 - alphas_cumprod) ** 0.5
 
-    sqrt_alphas_cumprod = sqrt_alphas_cumprod.to(device=timesteps.device)[timesteps].float()
+    sqrt_alphas_cumprod = sqrt_alphas_cumprod.to(device=timesteps.device)[
+        timesteps
+    ].float()
     while len(sqrt_alphas_cumprod.shape) < len(sample.shape):
         sqrt_alphas_cumprod = sqrt_alphas_cumprod[..., None]
     alpha = sqrt_alphas_cumprod.expand(sample.shape)
 
-    sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod.to(device=timesteps.device)[timesteps].float()
+    sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod.to(
+        device=timesteps.device
+    )[timesteps].float()
     while len(sqrt_one_minus_alphas_cumprod.shape) < len(sample.shape):
         sqrt_one_minus_alphas_cumprod = sqrt_one_minus_alphas_cumprod[..., None]
     sigma = sqrt_one_minus_alphas_cumprod.expand(sample.shape)
@@ -329,7 +358,9 @@ def loss_step(
     eval: bool = False,
 ):
     images = batch["pixel_values"]
-    generator = torch.Generator(device=images.device).manual_seed(seed + step) if eval else None
+    generator = (
+        torch.Generator(device=images.device).manual_seed(seed + step) if eval else None
+    )
     bsz = images.shape[0]
 
     # Convert images to latent space
@@ -342,7 +373,7 @@ def loss_step(
         dtype=latents.dtype,
         layout=latents.layout,
         device=latents.device,
-        generator=generator
+        generator=generator,
     )
     applied_noise = noise
 
@@ -353,7 +384,7 @@ def loss_step(
             octaves=4,
             dtype=latents.dtype,
             device=latents.device,
-            generator=generator
+            generator=generator,
         )
 
     if input_pertubation != 0:
@@ -362,7 +393,7 @@ def loss_step(
             dtype=latents.dtype,
             layout=latents.layout,
             device=latents.device,
-            generator=generator
+            generator=generator,
         )
 
     # Sample a random timestep for each image
@@ -375,25 +406,27 @@ def loss_step(
 
     # Get the text embedding for conditioning
     encoder_hidden_states = get_extended_embeddings(
-        text_encoder,
-        batch["input_ids"],
-        batch["attention_mask"]
+        text_encoder, batch["input_ids"], batch["attention_mask"]
     )
     encoder_hidden_states = encoder_hidden_states.to(dtype=unet.dtype)
 
     # Predict the noise residual
-    model_pred = unet(noisy_latents, timesteps, encoder_hidden_states, return_dict=False)[0]
+    model_pred = unet(
+        noisy_latents, timesteps, encoder_hidden_states, return_dict=False
+    )[0]
 
     if guidance_scale != 0:
         uncond_encoder_hidden_states = get_extended_embeddings(
-            text_encoder,
-            batch["negative_input_ids"],
-            batch["negative_attention_mask"]
+            text_encoder, batch["negative_input_ids"], batch["negative_attention_mask"]
         )
         uncond_encoder_hidden_states = uncond_encoder_hidden_states.to(dtype=unet.dtype)
 
-        model_pred_uncond = unet(noisy_latents, timesteps, uncond_encoder_hidden_states, return_dict=False)[0]
-        model_pred = model_pred_uncond + guidance_scale * (model_pred - model_pred_uncond)
+        model_pred_uncond = unet(
+            noisy_latents, timesteps, uncond_encoder_hidden_states, return_dict=False
+        )[0]
+        model_pred = model_pred_uncond + guidance_scale * (
+            model_pred - model_pred_uncond
+        )
 
     # Get the target for loss depending on the prediction type
     if noise_scheduler.config.prediction_type == "epsilon":
@@ -401,7 +434,9 @@ def loss_step(
     elif noise_scheduler.config.prediction_type == "v_prediction":
         target = noise_scheduler.get_velocity(latents, noise, timesteps)
     else:
-        raise ValueError(f"Unknown prediction type {noise_scheduler.config.prediction_type}")
+        raise ValueError(
+            f"Unknown prediction type {noise_scheduler.config.prediction_type}"
+        )
 
     acc = (model_pred == target).float().mean()
 
@@ -414,7 +449,9 @@ def loss_step(
         loss = F.mse_loss(model_pred.float(), target.float(), reduction="none")
 
         # Compute prior loss
-        prior_loss = F.mse_loss(model_pred_prior.float(), target_prior.float(), reduction="none")
+        prior_loss = F.mse_loss(
+            model_pred_prior.float(), target_prior.float(), reduction="none"
+        )
 
         # Add the prior loss to the instance loss.
         loss = loss + prior_loss_weight * prior_loss
@@ -433,7 +470,10 @@ def loss_step(
     if min_snr_gamma != 0:
         snr = compute_snr(timesteps, noise_scheduler)
         mse_loss_weights = (
-            torch.stack([snr, min_snr_gamma * torch.ones_like(timesteps)], dim=1).min(dim=1)[0] / snr
+            torch.stack([snr, min_snr_gamma * torch.ones_like(timesteps)], dim=1).min(
+                dim=1
+            )[0]
+            / snr
         )
         loss = loss * mse_loss_weights
 
@@ -447,8 +487,14 @@ def loss_step(
 
 
 class LossCallable(Protocol):
-    def __call__(self, step: int, batch: dict[Any, Any], cache: dict[str, Any],
-                 eval: bool = False) -> Tuple[Any, Any, int]: ...
+    def __call__(
+        self,
+        step: int,
+        batch: dict[Any, Any],
+        cache: dict[str, Any],
+        eval: bool = False,
+    ) -> Tuple[Any, Any, int]:
+        ...
 
 
 def train_loop(
@@ -472,9 +518,14 @@ def train_loop(
     avg_acc_val: AverageMeter = AverageMeter(),
     callbacks: TrainingCallbacks = TrainingCallbacks(),
 ):
-    num_training_steps_per_epoch = math.ceil(len(train_dataloader) / gradient_accumulation_steps)
-    num_val_steps_per_epoch = math.ceil(
-        len(val_dataloader) / gradient_accumulation_steps) if val_dataloader is not None else 0
+    num_training_steps_per_epoch = math.ceil(
+        len(train_dataloader) / gradient_accumulation_steps
+    )
+    num_val_steps_per_epoch = (
+        math.ceil(len(val_dataloader) / gradient_accumulation_steps)
+        if val_dataloader is not None
+        else 0
+    )
 
     num_training_steps = num_training_steps_per_epoch * num_epochs
     num_val_steps = num_val_steps_per_epoch * num_epochs
@@ -488,14 +539,14 @@ def train_loop(
     local_progress_bar = tqdm(
         range(num_training_steps_per_epoch + num_val_steps_per_epoch),
         disable=not accelerator.is_local_main_process,
-        dynamic_ncols=True
+        dynamic_ncols=True,
     )
     local_progress_bar.set_description(f"Epoch 1 / {num_epochs}")
 
     global_progress_bar = tqdm(
         range(num_training_steps + num_val_steps),
         disable=not accelerator.is_local_main_process,
-        dynamic_ncols=True
+        dynamic_ncols=True,
     )
     global_progress_bar.set_description("Total progress")
 
@@ -513,7 +564,9 @@ def train_loop(
     try:
         import dadaptation
 
-        isDadaptation = isinstance(optimizer.optimizer, (dadaptation.DAdaptAdam, dadaptation.DAdaptAdan))
+        isDadaptation = isinstance(
+            optimizer.optimizer, (dadaptation.DAdaptAdam, dadaptation.DAdaptAdan)
+        )
     except ImportError:
         pass
 
@@ -565,7 +618,10 @@ def train_loop(
                         label = group_labels[i] if i < len(group_labels) else f"{i}"
                         logs[f"lr/{label}"] = lr
                         if isDadaptation:
-                            lr = optimizer.param_groups[i]["d"] * optimizer.param_groups[i]["lr"]
+                            lr = (
+                                optimizer.param_groups[i]["d"]
+                                * optimizer.param_groups[i]["lr"]
+                            )
                             logs[f"d*lr/{label}"] = lr
                         lrs[label] = lr
 
@@ -573,8 +629,10 @@ def train_loop(
 
                     local_progress_bar.set_postfix(**logs)
 
-                    if ((step + 1) % gradient_accumulation_steps == 0) or ((step + 1) == len(train_dataloader)):
-                        before_optimize_result = on_before_optimize(epoch)
+                    if ((step + 1) % gradient_accumulation_steps == 0) or (
+                        (step + 1) == len(train_dataloader)
+                    ):
+                        before_optimize_result = on_before_optimize(cycle)
 
                         optimizer.step()
                         lr_scheduler.step()
@@ -614,7 +672,9 @@ def train_loop(
                         }
                         local_progress_bar.set_postfix(**logs)
 
-                        if ((step + 1) % gradient_accumulation_steps == 0) or ((step + 1) == len(val_dataloader)):
+                        if ((step + 1) % gradient_accumulation_steps == 0) or (
+                            (step + 1) == len(val_dataloader)
+                        ):
                             local_progress_bar.update(1)
                             global_progress_bar.update(1)
 
@@ -634,7 +694,8 @@ def train_loop(
                         global_progress_bar.clear()
 
                         accelerator.print(
-                            f"Global step {global_step}: Validation accuracy reached new maximum: {best_acc_val:.2e} -> {avg_acc_val.avg:.2e}")
+                            f"Global step {global_step}: Validation accuracy reached new maximum: {best_acc_val:.2e} -> {avg_acc_val.avg:.2e}"
+                        )
                         on_checkpoint(global_step, "milestone")
                         best_acc_val = avg_acc_val.max
             else:
@@ -644,7 +705,8 @@ def train_loop(
                         global_progress_bar.clear()
 
                         accelerator.print(
-                            f"Global step {global_step}: Training accuracy reached new maximum: {best_acc:.2e} -> {avg_acc.avg:.2e}")
+                            f"Global step {global_step}: Training accuracy reached new maximum: {best_acc:.2e} -> {avg_acc.avg:.2e}"
+                        )
                         on_checkpoint(global_step, "milestone")
                         best_acc = avg_acc.max
 
@@ -700,17 +762,32 @@ def train(
     avg_acc_val: AverageMeter = AverageMeter(),
     **kwargs,
 ):
-    text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler = strategy.prepare(
-        accelerator, text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler, **kwargs)
+    (
+        text_encoder,
+        unet,
+        optimizer,
+        train_dataloader,
+        val_dataloader,
+        lr_scheduler,
+    ) = strategy.prepare(
+        accelerator,
+        text_encoder,
+        unet,
+        optimizer,
+        train_dataloader,
+        val_dataloader,
+        lr_scheduler,
+        **kwargs,
+    )
 
     vae.to(accelerator.device, dtype=dtype)
     vae.requires_grad_(False)
     vae.eval()
 
-    vae = torch.compile(vae, backend='hidet')
+    vae = torch.compile(vae, backend="hidet")
 
     if compile_unet:
-        unet = torch.compile(unet, backend='hidet')
+        unet = torch.compile(unet, backend="hidet")
         # unet = torch.compile(unet, mode="reduce-overhead")
 
     callbacks = strategy.callbacks(
diff --git a/training/lr.py b/training/lr.py
index f5b362f..a75078f 100644
--- a/training/lr.py
+++ b/training/lr.py
@@ -23,12 +23,12 @@ def plot_metrics(
     fig, ax_loss = plt.subplots()
     ax_acc = ax_loss.twinx()
 
-    ax_loss.plot(lrs, losses, color='red')
+    ax_loss.plot(lrs, losses, color="red")
     ax_loss.set_xscale("log")
     ax_loss.set_xlabel(f"Learning rate")
     ax_loss.set_ylabel("Loss")
 
-    ax_acc.plot(lrs, accs, color='blue')
+    ax_acc.plot(lrs, accs, color="blue")
     ax_acc.set_xscale("log")
     ax_acc.set_ylabel("Accuracy")
 
diff --git a/training/optimization.py b/training/optimization.py
index d22a900..55531bf 100644
--- a/training/optimization.py
+++ b/training/optimization.py
@@ -5,7 +5,10 @@ from functools import partial
 import torch
 from torch.optim.lr_scheduler import LambdaLR
 
-from diffusers.optimization import get_scheduler as get_scheduler_, get_cosine_with_hard_restarts_schedule_with_warmup
+from diffusers.optimization import (
+    get_scheduler as get_scheduler_,
+    get_cosine_with_hard_restarts_schedule_with_warmup,
+)
 from transformers.optimization import get_adafactor_schedule
 
 
@@ -52,7 +55,7 @@ def get_one_cycle_schedule(
     annealing_exp: int = 1,
     min_lr: float = 0.04,
     mid_point: float = 0.3,
-    last_epoch: int = -1
+    last_epoch: int = -1,
 ):
     if warmup == "linear":
         warmup_func = warmup_linear
@@ -83,12 +86,16 @@ def get_one_cycle_schedule(
 
     def lr_lambda(current_step: int):
         phase = [p for p in phases if current_step >= p.step_min][-1]
-        return phase.min + phase.func((current_step - phase.step_min) / (phase.step_max - phase.step_min)) * (phase.max - phase.min)
+        return phase.min + phase.func(
+            (current_step - phase.step_min) / (phase.step_max - phase.step_min)
+        ) * (phase.max - phase.min)
 
     return LambdaLR(optimizer, lr_lambda, last_epoch)
 
 
-def get_exponential_growing_schedule(optimizer, end_lr: float, num_training_steps: int, last_epoch: int = -1):
+def get_exponential_growing_schedule(
+    optimizer, end_lr: float, num_training_steps: int, last_epoch: int = -1
+):
     def lr_lambda(base_lr: float, current_step: int):
         return (end_lr / base_lr) ** (current_step / num_training_steps)
 
@@ -132,7 +139,14 @@ def get_scheduler(
         )
     elif id == "exponential_growth":
         if cycles is None:
-            cycles = math.ceil(math.sqrt(((num_training_steps - num_warmup_steps) / num_training_steps_per_epoch)))
+            cycles = math.ceil(
+                math.sqrt(
+                    (
+                        (num_training_steps - num_warmup_steps)
+                        / num_training_steps_per_epoch
+                    )
+                )
+            )
 
         lr_scheduler = get_exponential_growing_schedule(
             optimizer=optimizer,
@@ -141,7 +155,14 @@ def get_scheduler(
         )
     elif id == "cosine_with_restarts":
         if cycles is None:
-            cycles = math.ceil(math.sqrt(((num_training_steps - num_warmup_steps) / num_training_steps_per_epoch)))
+            cycles = math.ceil(
+                math.sqrt(
+                    (
+                        (num_training_steps - num_warmup_steps)
+                        / num_training_steps_per_epoch
+                    )
+                )
+            )
 
         lr_scheduler = get_cosine_with_hard_restarts_schedule_with_warmup(
             optimizer=optimizer,
@@ -150,10 +171,7 @@ def get_scheduler(
             num_cycles=cycles,
         )
     elif id == "adafactor":
-        lr_scheduler = get_adafactor_schedule(
-            optimizer,
-            initial_lr=min_lr
-        )
+        lr_scheduler = get_adafactor_schedule(optimizer, initial_lr=min_lr)
     else:
         lr_scheduler = get_scheduler_(
             id,
diff --git a/training/sampler.py b/training/sampler.py
index bdb3e90..0487d66 100644
--- a/training/sampler.py
+++ b/training/sampler.py
@@ -134,7 +134,7 @@ class LossSecondMomentResampler(LossAwareSampler):
     def weights(self):
         if not self._warmed_up():
             return np.ones([self.num_timesteps], dtype=np.float64)
-        weights = np.sqrt(np.mean(self._loss_history ** 2, axis=-1))
+        weights = np.sqrt(np.mean(self._loss_history**2, axis=-1))
         weights /= np.sum(weights)
         weights *= 1 - self.uniform_prob
         weights += self.uniform_prob / len(weights)
diff --git a/training/strategy/dreambooth.py b/training/strategy/dreambooth.py
index e6fcc89..88b441b 100644
--- a/training/strategy/dreambooth.py
+++ b/training/strategy/dreambooth.py
@@ -29,7 +29,7 @@ def dreambooth_strategy_callbacks(
     sample_output_dir: Path,
     checkpoint_output_dir: Path,
     seed: int,
-    train_text_encoder_epochs: int,
+    train_text_encoder_cycles: int,
     max_grad_norm: float = 1.0,
     use_ema: bool = False,
     ema_inv_gamma: float = 1.0,
@@ -85,15 +85,13 @@ def dreambooth_strategy_callbacks(
             return nullcontext()
 
     @contextmanager
-    def on_train(epoch: int):
+    def on_train(cycle: int):
         unet.train()
         tokenizer.train()
 
-        if epoch < train_text_encoder_epochs:
+        if cycle < train_text_encoder_cycles:
             text_encoder.train()
-        elif epoch == train_text_encoder_epochs:
-            text_encoder.requires_grad_(False)
-            text_encoder.eval()
+            tokenizer.train()
 
         yield
 
@@ -106,9 +104,9 @@ def dreambooth_strategy_callbacks(
         with ema_context():
             yield
 
-    def on_before_optimize(epoch: int):
+    def on_before_optimize(cycle: int):
         params_to_clip = [unet.parameters()]
-        if epoch < train_text_encoder_epochs:
+        if cycle < train_text_encoder_cycles:
             params_to_clip.append(text_encoder.parameters())
         accelerator.clip_grad_norm_(itertools.chain(*params_to_clip), max_grad_norm)
 
@@ -189,8 +187,16 @@ def dreambooth_prepare(
     lr_scheduler: torch.optim.lr_scheduler._LRScheduler,
     **kwargs
 ):
-    text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler = accelerator.prepare(
-        text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler)
+    (
+        text_encoder,
+        unet,
+        optimizer,
+        train_dataloader,
+        val_dataloader,
+        lr_scheduler,
+    ) = accelerator.prepare(
+        text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler
+    )
 
     text_encoder.text_model.embeddings.requires_grad_(False)
 
@@ -198,6 +204,5 @@ def dreambooth_prepare(
 
 
 dreambooth_strategy = TrainingStrategy(
-    callbacks=dreambooth_strategy_callbacks,
-    prepare=dreambooth_prepare
+    callbacks=dreambooth_strategy_callbacks, prepare=dreambooth_prepare
 )
diff --git a/training/strategy/lora.py b/training/strategy/lora.py
index f942b76..14e3384 100644
--- a/training/strategy/lora.py
+++ b/training/strategy/lora.py
@@ -81,7 +81,7 @@ def lora_strategy_callbacks(
         tokenizer.eval()
         yield
 
-    def on_before_optimize(epoch: int):
+    def on_before_optimize(cycle: int):
         if not pti_mode:
             accelerator.clip_grad_norm_(
                 itertools.chain(
@@ -89,7 +89,7 @@ def lora_strategy_callbacks(
                     text_encoder.text_model.encoder.parameters(),
                     text_encoder.text_model.final_layer_norm.parameters(),
                 ),
-                max_grad_norm
+                max_grad_norm,
             )
 
         if len(placeholder_tokens) != 0 and use_emb_decay:
@@ -108,7 +108,9 @@ def lora_strategy_callbacks(
 
             if lambda_ != 0:
                 norm = w[:, :].norm(dim=-1, keepdim=True)
-                w[:].add_((w[:] / norm.clamp_min(1e-12)) * lambda_ * (emb_decay_target - norm))
+                w[:].add_(
+                    (w[:] / norm.clamp_min(1e-12)) * lambda_ * (emb_decay_target - norm)
+                )
 
     @torch.no_grad()
     def on_checkpoint(step, postfix):
@@ -128,25 +130,32 @@ def lora_strategy_callbacks(
 
         if not pti_mode:
             lora_config = {}
-            state_dict = get_peft_model_state_dict(unet_, state_dict=accelerator.get_state_dict(unet_))
+            state_dict = get_peft_model_state_dict(
+                unet_, state_dict=accelerator.get_state_dict(unet_)
+            )
             lora_config["peft_config"] = unet_.get_peft_config_as_dict(inference=True)
 
             text_encoder_state_dict = get_peft_model_state_dict(
                 text_encoder_, state_dict=accelerator.get_state_dict(text_encoder_)
             )
-            text_encoder_state_dict = {f"text_encoder_{k}": v for k, v in text_encoder_state_dict.items()}
+            text_encoder_state_dict = {
+                f"text_encoder_{k}": v for k, v in text_encoder_state_dict.items()
+            }
             state_dict.update(text_encoder_state_dict)
-            lora_config["text_encoder_peft_config"] = text_encoder_.get_peft_config_as_dict(inference=True)
+            lora_config[
+                "text_encoder_peft_config"
+            ] = text_encoder_.get_peft_config_as_dict(inference=True)
 
             if len(placeholder_tokens) != 0:
                 ti_state_dict = {
                     f"ti_${token}": text_encoder.text_model.embeddings.get_embed(ids)
-                    for (token, ids)
-                    in zip(placeholder_tokens, placeholder_token_ids)
+                    for (token, ids) in zip(placeholder_tokens, placeholder_token_ids)
                 }
                 state_dict.update(ti_state_dict)
 
-            save_file(state_dict, checkpoint_output_dir / f"{step}_{postfix}.safetensors")
+            save_file(
+                state_dict, checkpoint_output_dir / f"{step}_{postfix}.safetensors"
+            )
             with open(checkpoint_output_dir / "lora_config.json", "w") as f:
                 json.dump(lora_config, f)
 
@@ -185,10 +194,18 @@ def lora_prepare(
     train_dataloader: DataLoader,
     val_dataloader: Optional[DataLoader],
     lr_scheduler: torch.optim.lr_scheduler._LRScheduler,
-    **kwargs
+    **kwargs,
 ):
-    text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler = accelerator.prepare(
-        text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler)
+    (
+        text_encoder,
+        unet,
+        optimizer,
+        train_dataloader,
+        val_dataloader,
+        lr_scheduler,
+    ) = accelerator.prepare(
+        text_encoder, unet, optimizer, train_dataloader, val_dataloader, lr_scheduler
+    )
 
     # text_encoder.text_model.embeddings.token_embedding.requires_grad_(True)
 
diff --git a/training/strategy/ti.py b/training/strategy/ti.py
index 6bc1d7d..7373982 100644
--- a/training/strategy/ti.py
+++ b/training/strategy/ti.py
@@ -104,7 +104,7 @@ def textual_inversion_strategy_callbacks(
             yield
 
     @torch.no_grad()
-    def on_before_optimize(epoch: int):
+    def on_before_optimize(cycle: int):
         if use_emb_decay:
             params = [
                 p
@@ -116,7 +116,9 @@ def textual_inversion_strategy_callbacks(
     @torch.no_grad()
     def on_after_optimize(w, lrs: dict[str, float]):
         if ema_embeddings is not None:
-            ema_embeddings.step(text_encoder.text_model.embeddings.token_embedding.parameters())
+            ema_embeddings.step(
+                text_encoder.text_model.embeddings.token_embedding.parameters()
+            )
 
         if use_emb_decay and w is not None:
             lr = lrs["emb"] if "emb" in lrs else lrs["0"]
@@ -124,7 +126,9 @@ def textual_inversion_strategy_callbacks(
 
             if lambda_ != 0:
                 norm = w[:, :].norm(dim=-1, keepdim=True)
-                w[:].add_((w[:] / norm.clamp_min(1e-12)) * lambda_ * (emb_decay_target - norm))
+                w[:].add_(
+                    (w[:] / norm.clamp_min(1e-12)) * lambda_ * (emb_decay_target - norm)
+                )
 
     def on_log():
         if ema_embeddings is not None:
@@ -136,10 +140,10 @@ def textual_inversion_strategy_callbacks(
         print(f"Saving checkpoint for step {step}...")
 
         with ema_context():
-            for (token, ids) in zip(placeholder_tokens, placeholder_token_ids):
+            for token, ids in zip(placeholder_tokens, placeholder_token_ids):
                 text_encoder.text_model.embeddings.save_embed(
                     ids,
-                    checkpoint_output_dir / f"{slugify(token)}_{step}_{postfix}.bin"
+                    checkpoint_output_dir / f"{slugify(token)}_{step}_{postfix}.bin",
                 )
 
     @torch.no_grad()
@@ -183,7 +187,7 @@ def textual_inversion_prepare(
     val_dataloader: Optional[DataLoader],
     lr_scheduler: torch.optim.lr_scheduler._LRScheduler,
     gradient_checkpointing: bool = False,
-    **kwargs
+    **kwargs,
 ):
     weight_dtype = torch.float32
     if accelerator.state.mixed_precision == "fp16":
@@ -191,8 +195,15 @@ def textual_inversion_prepare(
     elif accelerator.state.mixed_precision == "bf16":
         weight_dtype = torch.bfloat16
 
-    text_encoder, optimizer, train_dataloader, val_dataloader, lr_scheduler = accelerator.prepare(
-        text_encoder, optimizer, train_dataloader, val_dataloader, lr_scheduler)
+    (
+        text_encoder,
+        optimizer,
+        train_dataloader,
+        val_dataloader,
+        lr_scheduler,
+    ) = accelerator.prepare(
+        text_encoder, optimizer, train_dataloader, val_dataloader, lr_scheduler
+    )
 
     unet.to(accelerator.device, dtype=weight_dtype)
     unet.requires_grad_(False)
-- 
cgit v1.2.3-54-g00ecf