/**
 * Wait for a given amount of time expressed in milliseconds.
 * @param timeMs The time to wait in milliseconds.
 * @returns A promise that resolves after the given amount of time.
 */
export declare function waitMs(timeMs: number): Promise<void>;
/**
 * Wait until a given predicate returns true.
 * @param predicate Defines the predicate to wait for.
 */
export declare function waitUntil(predicate: () => any): Promise<void>;
/**
 * Clones the given JavaScript object. This function does not handle cyclic references.
 * @param source defines the reference to the JavaScript object to clone.
 */
export declare function cloneJSObject<T>(source: T): T;