declare type Item = object;
declare type WithId = [number, Item];
export declare type FilterCallback = (item: WithId, idx: number, array: IDataProvider) => boolean;
export declare type MapCallback = (item: WithId, idx: number, array: IDataProvider) => any;
export interface IDataProvider {
    length: number;
    get: (id: string | number) => Item;
    filter: (cb: FilterCallback) => IDataProvider;
    map: (cb: MapCallback) => any[];
}
export {};