import type { LangChainCallbackHandler, LangChainOptions } from './types';
/**
 * Creates a Sentry callback handler for LangChain
 * Returns a plain object that LangChain will call via duck-typing
 *
 * This is a stateful handler that tracks spans across multiple LangChain executions.
 */
export declare function createLangChainCallbackHandler(options?: LangChainOptions): LangChainCallbackHandler;
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