ADK for TypeScript: API Reference
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    Interface LangGraphMessageLike

    Structural representation of a message exchanged with a LangGraph graph.

    interface LangGraphMessageLike {
        content: LangGraphMessageContent;
        type?: string;
    }

    Hierarchy (View Summary)

    Text or structured content of the message.

    type?: string

    Optional role or message type identifier ('human', 'ai', or 'system').