/**
 * Get a stage (HTML <section>) where a test can manipulate DOM.  If id is supplied,
 * then return the previously created section with the given id attribute if any -
 * otherwise assign the id to the new stage.
 *
 * @param id optional id to retrieve if present - or assign to new stage
 * @param title optional title (and heading) to attach to a new stage
 * @return HTMLSection
 */
export declare function getStage(id?: string, title?: string): Element;
/**
 * Little helper to kick off the test runner
 * of the underlying platform.  Assumes
 * either Karma runtime or
 * jasmine brower runtime (via littleJasmineBoot).
 */
export declare function startTest(): void;