import { ChatMessage } from '../types.js';
export declare class ConversationHistory {
    private messages;
    private maxHistoryTokens;
    constructor();
    addMessage(message: ChatMessage): void;
    getMessages(): ChatMessage[];
    setMessages(messages: ChatMessage[]): void;
    getLastUserMessage(): ChatMessage | undefined;
    clear(): void;
    length(): number;
    exportMarkdown(filePath?: string): string;
}
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