from typing import TYPE_CHECKING if TYPE_CHECKING: from typing import Union from openai.types.responses import ResponseInputItemParam, ResponseInputParam def _is_system_instruction(message: "ResponseInputItemParam") -> bool: if not isinstance(message, dict) or not message.get("role") == "system": return False return "type" not in message or message["type"] == "message" def _get_system_instructions( messages: "Union[str, ResponseInputParam]", ) -> "list[ResponseInputItemParam]": if not isinstance(messages, list): return [] return [message for message in messages if _is_system_instruction(message)]