import { z } from 'zod';
import { LLMFetcher } from '..';
export declare const ChatGPTLLMResponseSchema: z.ZodObject<{
    choices: z.ZodArray<z.ZodObject<{
        message: z.ZodObject<{
            content: z.ZodString;
        }, z.core.$strip>;
    }, z.core.$strip>>;
}, z.core.$strip>;
export declare class ChatGPTLLMFetcher implements LLMFetcher {
    private readonly apiUrl;
    private readonly config;
    constructor({ apiKey, model, apiOrigin, }: {
        apiKey: string;
        model?: string;
        apiOrigin?: string;
    });
    getLengthLimit(): number;
    getRequestsTimeout(): number;
    fetch(prompt: string): Promise<string>;
}