import { PushAdapter } from '../common';
/**
 * Multicasts pushed values to a variable number of async iterable iterators
 * as receivers or subscribers.
 *
 * Does not buffer pushed values; if no receivers are registered, pushed
 * values are silently discarded.
 */
export default class Multicast<A> implements AsyncIterable<A> {
    private readonly init;
    onStart?(): void;
    onStop?(): void;
    readonly receivers: Set<PushAdapter<A>>;
    constructor(init?: () => PushAdapter<A>);
    /**
     * Pushes a value to all registered receivers.
     */
    push(value: A): this;
    /**
     * Creates and registers a receiver.
     */
    [Symbol.asyncIterator](): AsyncIterableIterator<A>;
}