import ExpiryMap from 'expiry-map';
import { Context, Dict, Quester, Schema } from 'koishi';
export interface Conversation {
    conversationId?: string;
    messageId?: string;
    message: string;
}
declare class ChatGPT {
    config: ChatGPT.Config;
    protected http: Quester;
    protected _accessTokenCache: ExpiryMap<string, string>;
    constructor(ctx: Context, config: ChatGPT.Config);
    getIsAuthenticated(): Promise<boolean>;
    ensureAuth(): Promise<string>;
    /**
     * Sends a message to ChatGPT, waits for the response to resolve, and returns
     * the response.
     *
     * @param message - The plaintext message to send.
     * @param opts.conversationId - Optional ID of the previous message in a conversation
     */
    sendMessage(conversation: Conversation): Promise<Required<Conversation>>;
    refreshAccessToken(): Promise<string>;
}
declare namespace ChatGPT {
    interface Config {
        sessionToken: string;
        cloudflareToken: string;
        endpoint: string;
        markdown?: boolean;
        headers?: Dict<string>;
        proxyAgent?: string;
    }
    const Config: Schema<Config>;
}
export default ChatGPT;