import { IncomingMessage } from 'node:http';
import { LastFMParams, LastFMUnknownFunction, OptionalConfig } from './types.js';
export declare class LastFMApiRequest<T> {
    config: OptionalConfig;
    private readonly params;
    constructor(config: OptionalConfig);
    set<P>(params: LastFMParams<void | P>): this;
    sign(secret?: string): this;
    send(method?: string | LastFMUnknownFunction, callback?: LastFMUnknownFunction): Promise<T>;
    private setParams;
    private getCallback;
    private getMethod;
    private getOptions;
}
export declare class LastFMResponseError extends Error {
    response?: IncomingMessage;
    content?: string;
    constructor(message: string, options?: ErrorOptions & {
        response?: IncomingMessage;
        content?: string;
    });
}
export default LastFMApiRequest;