def check_dummies(overwrite=False):
    """Check if the dummy files are up to date and maybe `overwrite` with the right content."""
    dummy_files = create_dummy_files()
    # For special correspondence backend to shortcut as used in utils/dummy_xxx_objects.py
    short_names = {"torch": "pt"}

    # Locate actual dummy modules and read their content.
    path = os.path.join(PATH_TO_DIFFUSERS, "utils")
    dummy_file_paths = {
        backend: os.path.join(path, f"dummy_{short_names.get(backend, backend)}_objects.py")
        for backend in dummy_files.keys()
    }

    actual_dummies = {}
    for backend, file_path in dummy_file_paths.items():
        if os.path.isfile(file_path):
            with open(file_path, "r", encoding="utf-8", newline="\n") as f:
                actual_dummies[backend] = f.read()
        else:
            actual_dummies[backend] = ""

    for backend in dummy_files.keys():
        if dummy_files[backend] != actual_dummies[backend]:
            if overwrite:
                print(
                    f"Updating diffusers.utils.dummy_{short_names.get(backend, backend)}_objects.py as the main "
                    "__init__ has new objects."
                )
                with open(dummy_file_paths[backend], "w", encoding="utf-8", newline="\n") as f:
                    f.write(dummy_files[backend])
            else:
                raise ValueError(
                    "The main __init__ has objects that are not present in "
                    f"diffusers.utils.dummy_{short_names.get(backend, backend)}_objects.py. Run `make fix-copies` "
                    "to fix this."
                )
Check if the dummy files are up to date and maybe `overwrite` with the right content.
utils/check_dummies.py