import { IterableX } from './iterablex';
export declare class FinallyIterable<TSource> extends IterableX<TSource> {
    private _source;
    private _action;
    constructor(source: Iterable<TSource>, action: () => void);
    [Symbol.iterator](): IterableIterator<TSource>;
}
/**
 * Creates a sequence whose termination or disposal of an iterator causes a finally action to be executed.
 * @param {Iterator<T>} source Source sequence
 * @param {function(): void)} action Action to run upon termination of the sequence, or when an iterator is disposed.
 * @return {Iterable<T>} Source sequence with guarantees on the invocation of the finally action.
 */
export declare function _finally<TSource>(source: Iterable<TSource>, action: () => void): IterableX<TSource>;