/**
 * Common controller utilities.
 */
/** @internal */
export declare class Utils {
    /**
     * Merges two objects.
     *
     * @param obj1 First object to be merged
     * @param obj2 Second object to be merged
     * @returns Merged object
     */
    static merge(obj1: any, obj2: any): any;
    /**
     * Checks if given object is possibly a Promise object.
     *
     * @param object Object to be checked
     * @returns True if given object is a possible Promise, false otherwise
     */
    static isPromise(object: any): boolean;
}