langchain_core.messages.system — 🦜🔗 LangChain 0.2.0

from typing import List, Literal

from langchain_core.messages.base import BaseMessage, BaseMessageChunk


[docs]class SystemMessage(BaseMessage):
    """用于激活AI行为的消息，通常作为输入消息序列中的第一个消息传递。
"""

    type: Literal["system"] = "system"

[docs]    @classmethod
    def get_lc_namespace(cls) -> List[str]:
        """获取langchain对象的命名空间。"""
        return ["langchain", "schema", "messages"]


SystemMessage.update_forward_refs()


[docs]class SystemMessageChunk(SystemMessage, BaseMessageChunk):
    """系统消息块。"""

    # Ignoring mypy re-assignment here since we're overriding the value
    # to make sure that the chunk variant can be discriminated from the
    # non-chunk variant.
    type: Literal["SystemMessageChunk"] = "SystemMessageChunk"  # type: ignore[assignment] # noqa: E501

[docs]    @classmethod
    def get_lc_namespace(cls) -> List[str]:
        """获取langchain对象的命名空间。"""
        return ["langchain", "schema", "messages"]
Source code for langchain_core.messages.system
