declare module "@irysius/grid-math/helpers/Iterable" {
    export interface ISlidingWindowOptions {
        prevCapacity: number;
        nextCapacity: number;
    }
    export interface ISlidingWindow<T> {
        next(): {
            value: T;
            done: boolean;
        };
        [Symbol.iterator](): this;
        readonly prevValues: T[];
        readonly currValue: T;
        readonly nextValues: T[];
        readonly done: boolean;
    }
    export function SlidingWindow<T>(collection: IterableIterator<T>, options: ISlidingWindowOptions): ISlidingWindow<T>;
    export function isIterator<T = any>(value: any): value is IterableIterator<T>;
    export type Mapper<T, U> = (item?: T, collection?: IterableIterator<T>) => U;
    export function map<T, U>(mapper: Mapper<T, U>): (collection: IterableIterator<T>) => IterableIterator<U>;
    export function flatten(): <T>(collection: IterableIterator<T | IterableIterator<T>>) => IterableIterator<T>;
    export type Filterer<T> = (item?: T, collection?: IterableIterator<T>) => boolean;
    export function filter<T>(filterer: Filterer<T>): (collection: IterableIterator<T>) => IterableIterator<T>;
    export function zip<A, B>(collectionA: IterableIterator<A>, collectionB: IterableIterator<B>): IterableIterator<[A, B]>;
    export type IteratorPipe = (x: IterableIterator<any>) => IterableIterator<any>;
    export function flow<A = any, Z = any>(...pipes: IteratorPipe[]): (collection: IterableIterator<A>) => IterableIterator<Z>;
    export function skip(count: number): <T>(collection: IterableIterator<T>) => void;
    export function take(count: number): <T>(collection: IterableIterator<T>) => T[];
    export function skipTake(_skip: number, _take: number): <T>(collection: IterableIterator<T>) => T[];
    export function fromArray<T>(items: T[]): IterableIterator<T>;
}