export declare function currency(amount: number, symbol: string, fractionSize?: number): string; export declare function date(date: Date | number | string, format?: string, timezone?: string): string; export declare function filter(array: T[], expression: string | object | ((value: T, index: number, array: T[]) => boolean), comparator?: ((actual: T, expected: T) => boolean) | boolean, anyPropertyKey?: string): T[]; export declare function json(object: T, spacing?: number): string; export declare function limitTo(input: string | number, limit: string | number | undefined, begin?: string | number): string; export declare function limitTo(input: Array | ArrayLike, limit: string | number | undefined, begin?: string | number): Array; export declare function linky(text: string, target: '_blank' | '_self' | '_parent' | '_top' | string, attributes?: object | ((url: string) => object)): string; export declare function lowercase(str: string): string; export declare function number(num: number | string, fractionSize?: number | string): string; export declare function orderBy(collection: Array | ArrayLike, expression: ((obj: T) => any) | string | Array, reverse?: boolean, comparator?: Function): T[]; export declare function uppercase(str: string): string;