import { IterableX } from '../iterable';
/**
 * Generates an iterable sequence by repeating a source sequence as long as the given loop postcondition holds.
 * @param {Iterable<T>} source Source sequence to repeat while the condition evaluates true.
 * @param {function(): boolean} condition Loop condition.
 * @return {Iterable<T>} Sequence generated by repeating the given sequence until the condition evaluates to false.
 */
export declare function doWhile<TSource>(source: Iterable<TSource>, condition: () => boolean): IterableX<TSource>;