import { ApiEventMap, PitcherAPI, PitcherResponse, ApiOptions } from '../interfaces';
import { EventEmitter } from '../utils/eventEmitter';
export declare class LowLevelApi extends EventEmitter<ApiEventMap> implements PitcherAPI {
    constructor(options?: ApiOptions);
    callbacks: {
        [k: string]: {
            callback: (res: PitcherResponse) => void;
            dispatched_at: number;
            type: string;
            payload: object;
        };
    };
    private options;
    private handleCallbackMessage;
    private handleEventMessage;
    request(type: string, body?: object | null): Promise<any>;
}