declare function Format(template: string, ...args: Array<({ [k: string]: any } | string)>): string;

interface Transformers {
    [k: string]: (s: any) => string;
}

declare namespace Format {
    /**
     * create a format function with given transformers
     * @param transformers functions which convert a string, indexed by a name
     */
    function create(transformers: Transformers): typeof Format;

    /**
     * @param prototype prototype which should be extended by format (usually String.prototype)
     * @param transformers functions which convert a string, indexed by a name
     */
    function extend(prototype: any, transformers: Transformers): void;
}

export = Format;