[Kolors] Add PAG (#8934)

* txt2img pag added

* autopipe added, fixed case

* style

* apply suggestions

* added fast tests, added todo tests

* revert dummy objects for kolors

* fix pag dummies

* fix test imports

* update pag tests

* add kolor pag to docs

---------

Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

Author: asomoza

docs/source/en/api/pipelines/pag.md

@@ -43,6 +43,11 @@ Since RegEx is supported as a way for matching layer identifiers, it is crucial
   - all
   - __call__
 
+## KolorsPAGPipeline
+[[autodoc]] KolorsPAGPipeline
+  - all
+  - __call__  
+
 ## StableDiffusionPAGPipeline
 [[autodoc]] StableDiffusionPAGPipeline
 	- all

src/diffusers/__init__.py

@@ -280,8 +280,6 @@
             "KandinskyV22Pipeline",
             "KandinskyV22PriorEmb2EmbPipeline",
             "KandinskyV22PriorPipeline",
-            "KolorsImg2ImgPipeline",
-            "KolorsPipeline",
             "LatentConsistencyModelImg2ImgPipeline",
             "LatentConsistencyModelPipeline",
             "LattePipeline",
@@ -397,7 +395,7 @@
     ]
 
 else:
-    _import_structure["pipelines"].extend(["KolorsImg2ImgPipeline", "KolorsPipeline"])
+    _import_structure["pipelines"].extend(["KolorsImg2ImgPipeline", "KolorsPAGPipeline", "KolorsPipeline"])
 
 try:
     if not (is_torch_available() and is_transformers_available() and is_onnx_available()):
@@ -820,7 +818,7 @@
     except OptionalDependencyNotAvailable:
         from .utils.dummy_torch_and_transformers_and_sentencepiece_objects import *  # noqa F403
     else:
-        from .pipelines import KolorsImg2ImgPipeline, KolorsPipeline
+        from .pipelines import KolorsImg2ImgPipeline, KolorsPAGPipeline, KolorsPipeline
     try:
         if not (is_torch_available() and is_transformers_available() and is_onnx_available()):
             raise OptionalDependencyNotAvailable()

src/diffusers/pipelines/__init__.py

@@ -146,6 +146,7 @@
     _import_structure["pag"].extend(
         [
             "AnimateDiffPAGPipeline",
+            "KolorsPAGPipeline",
             "HunyuanDiTPAGPipeline",
             "StableDiffusion3PAGPipeline",
             "StableDiffusionPAGPipeline",
@@ -540,6 +541,7 @@
         from .pag import (
             AnimateDiffPAGPipeline,
             HunyuanDiTPAGPipeline,
+            KolorsPAGPipeline,
             PixArtSigmaPAGPipeline,
             StableDiffusion3PAGPipeline,
             StableDiffusionControlNetPAGPipeline,

src/diffusers/pipelines/auto_pipeline.py

@@ -162,8 +162,10 @@
 
 if is_sentencepiece_available():
     from .kolors import KolorsPipeline
+    from .pag import KolorsPAGPipeline
 
     AUTO_TEXT2IMAGE_PIPELINES_MAPPING["kolors"] = KolorsPipeline
+    AUTO_TEXT2IMAGE_PIPELINES_MAPPING["kolors-pag"] = KolorsPAGPipeline
     AUTO_IMAGE2IMAGE_PIPELINES_MAPPING["kolors"] = KolorsPipeline
 
 SUPPORTED_TASKS_MAPPINGS = [

src/diffusers/pipelines/kolors/tokenizer.py

@@ -143,10 +143,18 @@ def get_command(self, token):
     def unk_token(self) -> str:
         return "<unk>"
 
+    @unk_token.setter
+    def unk_token(self, value: str):
+        self._unk_token = value
+
     @property
     def pad_token(self) -> str:
         return "<unk>"
 
+    @pad_token.setter
+    def pad_token(self, value: str):
+        self._pad_token = value
+
     @property
     def pad_token_id(self):
         return self.get_command("<pad>")
@@ -155,6 +163,10 @@ def pad_token_id(self):
     def eos_token(self) -> str:
         return "</s>"
 
+    @eos_token.setter
+    def eos_token(self, value: str):
+        self._eos_token = value
+
     @property
     def eos_token_id(self):
         return self.get_command("<eos>")

src/diffusers/pipelines/pag/__init__.py

@@ -25,6 +25,7 @@
     _import_structure["pipeline_pag_controlnet_sd"] = ["StableDiffusionControlNetPAGPipeline"]
     _import_structure["pipeline_pag_controlnet_sd_xl"] = ["StableDiffusionXLControlNetPAGPipeline"]
     _import_structure["pipeline_pag_hunyuandit"] = ["HunyuanDiTPAGPipeline"]
+    _import_structure["pipeline_pag_kolors"] = ["KolorsPAGPipeline"]
     _import_structure["pipeline_pag_pixart_sigma"] = ["PixArtSigmaPAGPipeline"]
     _import_structure["pipeline_pag_sd"] = ["StableDiffusionPAGPipeline"]
     _import_structure["pipeline_pag_sd_3"] = ["StableDiffusion3PAGPipeline"]
@@ -44,6 +45,7 @@
         from .pipeline_pag_controlnet_sd import StableDiffusionControlNetPAGPipeline
         from .pipeline_pag_controlnet_sd_xl import StableDiffusionXLControlNetPAGPipeline
         from .pipeline_pag_hunyuandit import HunyuanDiTPAGPipeline
+        from .pipeline_pag_kolors import KolorsPAGPipeline
         from .pipeline_pag_pixart_sigma import PixArtSigmaPAGPipeline
         from .pipeline_pag_sd import StableDiffusionPAGPipeline
         from .pipeline_pag_sd_3 import StableDiffusion3PAGPipeline