export declare const collection: (stream: any, options: any) => (sources: any) => {
    constructor: Function;
    toString(): string;
    toLocaleString(): string;
    valueOf(): Object;
    hasOwnProperty(v: string | number | symbol): boolean;
    isPrototypeOf(v: Object): boolean;
    propertyIsEnumerable(v: string | number | symbol): boolean;
};
export declare const COLLECTION_DELETE: () => any;
export declare const CollectionItem: (sources: any) => any;
export declare function Collection(sources: any): any;