declare function createSafeIterator<T, TReturn, TNext>(factory: (iterable: Iterable<T>) => Iterator<T, TReturn, TNext>, next: (iterator: Iterator<T, TReturn, TNext>) => any): {
    new (iterable: Iterable<T>): {
        /** @private */
        _iterator: Iterator<T, TReturn, TNext>;
        next(): any;
        [Symbol.iterator]: () => this;
    };
};
export = createSafeIterator;