interface DeferredPromise<T> extends Promise<T> {
            resolve: () => void;
            reject: () => void;
        }

        function createDeferred(): DeferredPromise<any> {
            let resolve;
            let reject;

            const promise: any = new Promise((_resolve, _reject) => {
                resolve = _resolve;
                reject = _reject;
            });

            promise.resolve = resolve;
            promise.reject = reject;

            return promise;
        }

        const deferredPromise = createDeferred();