import { Readable } from 'node:stream';
import type { ReadableTyped } from '@naturalcycles/nodejs-lib/stream';
import type { TransformOptions } from '../stream.model.js';
/**
 * Allows to combine multiple Readables into 1 Readable.
 * As soon as any of the input Readables emit - the output Readable emits
 * (passes through).
 * Order is not preserved in any way, first come first served!
 *
 * Readable completes when all input Readables complete.
 *
 * @experimental
 */
export declare class ReadableCombined<T> extends Readable implements ReadableTyped<T> {
    inputs: Readable[];
    static create<T>(inputs: Readable[], opt?: TransformOptions): ReadableCombined<T>;
    private constructor();
    private logger;
    /**
     * If defined - we are in Paused mode
     * and should await the lock to be resolved before proceeding.
     *
     * If not defined - we are in Flowing mode, no limits in data flow.
     */
    private lock?;
    private countIn;
    private countOut;
    private countReads;
    private run;
    _read(): void;
    private logStats;
}