made a modular_pipelines folder!

Author: yiyixuxu

src/diffusers/modular_pipelines/__init__.py

@@ -0,0 +1,82 @@
+from typing import TYPE_CHECKING
+
+from ..utils import (
+    DIFFUSERS_SLOW_IMPORT,
+    OptionalDependencyNotAvailable,
+    _LazyModule,
+    get_objects_from_module,
+    is_torch_available,
+    is_transformers_available,
+)
+
+
+# These modules contain pipelines from multiple libraries/frameworks
+_dummy_objects = {}
+_import_structure = {}
+
+try:
+    if not is_torch_available():
+        raise OptionalDependencyNotAvailable()
+except OptionalDependencyNotAvailable:
+    from ..utils import dummy_pt_objects  # noqa F403
+
+    _dummy_objects.update(get_objects_from_module(dummy_pt_objects))
+else:
+    _import_structure["modular_pipeline"] = [
+        "ModularPipelineMixin",
+        "PipelineBlock",
+        "AutoPipelineBlocks",
+        "SequentialPipelineBlocks",
+        "LoopSequentialPipelineBlocks",
+        "ModularLoader",
+        "PipelineState",
+        "BlockState",
+    ]
+    _import_structure["modular_pipeline_utils"] = [
+        "ComponentSpec",
+        "ConfigSpec",
+        "InputParam",
+        "OutputParam",
+    ]
+    _import_structure["stable_diffusion_xl"] = ["StableDiffusionXLAutoPipeline", "StableDiffusionXLModularLoader"]
+    _import_structure["components_manager"] = ["ComponentsManager"]
+
+if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT:
+    try:
+        if not is_torch_available():
+            raise OptionalDependencyNotAvailable()
+    except OptionalDependencyNotAvailable:
+        from ..utils.dummy_pt_objects import *  # noqa F403
+    else:
+        from .modular_pipeline import (
+            AutoPipelineBlocks,
+            BlockState,
+            LoopSequentialPipelineBlocks,
+            ModularLoader,
+            ModularPipelineMixin,
+            PipelineBlock,
+            PipelineState,
+            SequentialPipelineBlocks,
+        )
+        from .modular_pipeline_utils import (
+            ComponentSpec,
+            ConfigSpec,
+            InputParam,
+            OutputParam,
+        )
+        from .stable_diffusion_xl import (
+            StableDiffusionXLAutoPipeline,
+            StableDiffusionXLModularLoader,
+        )
+        from .components_manager import ComponentsManager
+else:
+    import sys
+
+    sys.modules[__name__] = _LazyModule(
+        __name__,
+        globals()["__file__"],
+        _import_structure,
+        module_spec=__spec__,
+    )
+    for name, value in _dummy_objects.items():
+        setattr(sys.modules[__name__], name, value)