src/diffusers/pipelines/unclip/__init__.py

from typing import TYPE_CHECKING

from ...utils import (
    DIFFUSERS_SLOW_IMPORT,
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_torch_available,
    is_transformers_available,
    is_transformers_version,
)


_dummy_objects = {}
_import_structure = {}

try:
    if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.25.0")):
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    from ...utils.dummy_torch_and_transformers_objects import UnCLIPImageVariationPipeline, UnCLIPPipeline

    _dummy_objects.update(
        {"UnCLIPImageVariationPipeline": UnCLIPImageVariationPipeline, "UnCLIPPipeline": UnCLIPPipeline}
    )
else:
    _import_structure["pipeline_unclip"] = ["UnCLIPPipeline"]
    _import_structure["pipeline_unclip_image_variation"] = ["UnCLIPImageVariationPipeline"]
    _import_structure["text_proj"] = ["UnCLIPTextProjModel"]


if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT:
    try:
        if not (is_transformers_available() and is_torch_available() and is_transformers_version(">=", "4.25.0")):
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        from ...utils.dummy_torch_and_transformers_objects import *  # noqa F403
    else:
        from .pipeline_unclip import UnCLIPPipeline
        from .pipeline_unclip_image_variation import UnCLIPImageVariationPipeline
        from .text_proj import UnCLIPTextProjModel

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)