) -> ModelField:
    if PYDANTIC_V2:
        return field
    # cloned_types caches already cloned types to support recursive models and improve
    # performance by avoiding unnecessary cloning
    if cloned_types is None:
        cloned_types = _CLONED_TYPES_CACHE

    original_type = field.type_
    if is_dataclass(original_type) and hasattr(original_type, "__pydantic_model__"):

    operation_security = []
    for security_requirement in flat_dependant.security_requirements:
        security_definition = jsonable_encoder(
            security_requirement.security_scheme.model,
            by_alias=True,
            exclude_none=True,
        )
        security_name = security_requirement.security_scheme.scheme_name
        security_definitions[security_name] = security_definition