public Task <PopVacantInstanceResponse> PopVacantInstanceAsync(string serviceTypeUri, PopVacantInstanceRequest request) =>
 GetProxy(serviceTypeUri).PopVacantInstanceAsync(request);
        public async Task <PopVacantInstanceResponse> PopVacantInstanceAsync(PopVacantInstanceRequest request)
        {
            var result = await _mediator.ExecuteAsync(new PopVacantInstance(), default(CancellationToken));

            return(new PopVacantInstanceResponse(result.InstanceId));
        }