def generate_pattern_for_mixin(mixin_class: Type) -> str:
    """
    Generate pytest pattern for a specific mixin class.
    """
    if mixin_cls is None:
        return ""
    test_methods = get_test_methods_from_class(mixin_class)
    return generate_pytest_pattern(test_methods)

    Generate pytest pattern for a specific mixin class.
    
utils/extract_tests_from_mixin.py