import { AbstractSequence } from "./AbstractSequence.js";
/** Async iterable that pulls values from a source async iterable. */
export declare class ThroughSequence<T, R, N> extends AbstractSequence<T, R, N> implements AsyncIterator<T, R, N>, AsyncIterable<T, R, N> {
    private readonly _source;
    constructor(source: AsyncIterator<T, R, N>);
    next(next: N): Promise<IteratorResult<T, R>>;
    throw(thrown: unknown): Promise<IteratorResult<T, R>>;
    return(value: R | PromiseLike<R>): Promise<IteratorResult<T, R>>;
}