export interface Message {
    role: "user" | "assistant";
    content: string;
    timestamp: number;
}
export interface Session {
    id: string;
    chatId: string;
    workDir: string;
    messages: Message[];
    createdAt: number;
    updatedAt: number;
}
export declare function createSession(chatId: string, workDir: string): Session;
export declare function getOrCreateSession(chatId: string, workDir?: string): Session;
export declare function getSession(sessionId: string): Session | null;
export declare function getSessionByChatId(chatId: string): Session | null;
export declare function saveSession(session: Session): void;
export declare function addMessage(session: Session, role: "user" | "assistant", content: string): void;
export declare function clearSession(sessionId: string): void;
export declare function clearAllSessions(): void;
export declare function listSessions(): Session[];
export declare function setWorkDir(session: Session, workDir: string): void;
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