import EventEmitter from 'events';
import DataValidator from '@vvlad1973/data-validator';
import { ContentTypeSuffix } from '../constants.js';
export declare abstract class BaseApi extends EventEmitter {
    static validator: DataValidator;
    static schemasMap: Map<string, Record<string, unknown>>;
    static schemas: Map<string, Record<string, unknown>>;
    static initPromise: Promise<void>;
    protected abstract callApi<T>(methodName: string, params: object, routeId?: string, contentType?: keyof typeof ContentTypeSuffix): Promise<T>;
    protected executeCallApi<T>(methodName: string, params: object, routeId?: string, contentType?: keyof typeof ContentTypeSuffix): Promise<T>;
    static init(): Promise<void>;
}