utils/custom_init_isort.py/sort_imports_in_all_inits
def sort_imports_in_all_inits(check_only=True):
    failures = []
    for root, _, files in os.walk(PATH_TO_TRANSFORMERS):
        if "__init__.py" in files:
            result = sort_imports(os.path.join(root, "__init__.py"), check_only=check_only)
            if result:
                failures = [os.path.join(root, "__init__.py")]
    if len(failures) > 0:
        raise ValueError(f"Would overwrite {len(failures)} files, run `make style`.")