export default class PushPullIterable<T> implements AsyncIterable<T> {
    private queue;
    private pushQueue;
    private pullQueue;
    private producing;
    private consuming;
    private iterating;
    private consumeError;
    private produceError;
    constructor(capacity: number);
    [Symbol.asyncIterator](): AsyncIterator<T>;
    push(value: T): Promise<boolean>;
    private pull;
    return(): void;
    throw(error?: any): void;
    private iteratorReturn;
    private iteratorThrow;
}