def create_dummy_files(backend_specific_objects=None):
    """Create the content of the dummy files."""
    if backend_specific_objects is None:
        backend_specific_objects = read_init()
    # For special correspondence backend to module name as used in the function requires_modulename
    dummy_files = {}

    for backend, objects in backend_specific_objects.items():
        backend_name = "[" + ", ".join(f'"{b}"' for b in backend.split("_and_")) + "]"
        dummy_file = "# This file is autogenerated by the command `make fix-copies`, do not edit.\n"
        dummy_file += "from ..utils import DummyObject, requires_backends\n\n"
        dummy_file += "\n".join([create_dummy_object(o, backend_name) for o in objects])
        dummy_files[backend] = dummy_file

    return dummy_files
Create the content of the dummy files.
utils/check_dummies.py