/**
 * Fill the string template with arguments.
 * @param  {string} template The string template. Parameters are marked by
 *                           a colon. So '/resource/:id/action' has one
 *                           parameter that is 'id'.
 * @param  {dict}   args     Values for the parameters.
 * @return {string}          The string result by filling in the arguments to
 *                           the paramter slots. Parameters without arguments
 *                           will be left in their original state. E.g.
 *                           '/resource/:id/action/:extra' with argument of
 *                           {id: 1} will return '/resource/1/action/:extra'.
 */
export declare function fillString(template: string, args: {
    [key: string]: any;
}): string;
/**
 * Get the parameter names in the template string.
 * @param  {string}   template The template string format is the same as
 *                             fillString function.
 * @return {string[]}          The parameter names with the colon stripped off.
 */
export declare function getStringParams(template: string): string[];
export declare function buildQueryString(params: {
    [key: string]: any;
}): string;