/// <summary>Snippet for RejoinUserEventsAsync</summary>
        public async Task RejoinUserEventsRequestObjectAsync()
        {
            // Snippet: RejoinUserEventsAsync(RejoinUserEventsRequest, CallSettings)
            // Additional: RejoinUserEventsAsync(RejoinUserEventsRequest, CancellationToken)
            // Create client
            UserEventServiceClient userEventServiceClient = await UserEventServiceClient.CreateAsync();

            // Initialize request argument(s)
            RejoinUserEventsRequest request = new RejoinUserEventsRequest
            {
                Parent = "",
                UserEventRejoinScope = RejoinUserEventsRequest.Types.UserEventRejoinScope.Unspecified,
            };
            // Make the request
            Operation <RejoinUserEventsResponse, RejoinUserEventsMetadata> response = await userEventServiceClient.RejoinUserEventsAsync(request);

            // Poll until the returned long-running operation is complete
            Operation <RejoinUserEventsResponse, RejoinUserEventsMetadata> completedResponse = await response.PollUntilCompletedAsync();

            // Retrieve the operation result
            RejoinUserEventsResponse result = completedResponse.Result;

            // Or get the name of the operation
            string operationName = response.Name;
            // This name can be stored, then the long-running operation retrieved later by name
            Operation <RejoinUserEventsResponse, RejoinUserEventsMetadata> retrievedResponse = await userEventServiceClient.PollOnceRejoinUserEventsAsync(operationName);

            // Check if the retrieved long-running operation has completed
            if (retrievedResponse.IsCompleted)
            {
                // If it has completed, then access the result
                RejoinUserEventsResponse retrievedResult = retrievedResponse.Result;
            }
            // End snippet
        }