import { Subject } from "rxjs";
import { TxTask } from "./tx-task";
export declare class TxSubject<T> extends Subject<TxTask<any>> {
    private methods;
    isSubscribe: boolean;
    from: T;
    constructor();
    /**
     * two cases:
     * 1) name is string - then task.head.method => point to dataCB.
     * 2) name is [dataCB, errorCB] then:
     *    task.head.method[0] => point to dataCB.
     *    task.head.method[1] => point to errorCB.
     */
    method(name: string | string[], target: any, errorCB?: any): void;
    setCallbacks(dataCB: any, errorCB?: any): import("rxjs").Subscription;
    private isNamesArray;
    setFrom(from: T): void;
}