src/diffusers/pipelines/vq_diffusion/__init__.py

from ...utils import OptionalDependencyNotAvailable, is_torch_available, is_transformers_available


try:
    if not (is_transformers_available() and is_torch_available()):
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    from ...utils.dummy_torch_and_transformers_objects import *
else:
    from .pipeline_vq_diffusion import LearnedClassifierFreeSamplingEmbeddings, VQDiffusionPipeline