import { BaseChatModel } from "@langchain/core/language_models/chat_models";
/**
 * Determines the appropriate structured output method based on the LLM type
 * @param llm The language model instance
 * @returns The structured output method to use ("functionCalling" or "jsonMode")
 */
export declare function getStructuredOutputMethod(llm: BaseChatModel): "functionCalling" | undefined;