import { BaseMessage } from '@langchain/core/messages';
/**
 * Return the last N HumanMessage instances.
 */
export declare const getUserContext: (messages: BaseMessage[], userCount?: number) => BaseMessage[];
/**
 * Returns the concatenated content of all AI messages
 * that occur after the last HumanMessage.
 */
export declare const finalAgentResponse: (messages: BaseMessage[]) => string;