/// <summary>
        /// Apply batch operation
        /// </summary>
        /// <exception cref="Rakam.Client.Client.ApiException">Thrown when fails to make API call</exception>
        /// <param name="userEmailActionBatch"></param>
        /// <returns>Task of long?</returns>
        public async System.Threading.Tasks.Task <long?> BatchAsync(UserEmailActionBatch userEmailActionBatch)
        {
            ApiResponse <long?> localVarResponse = await BatchAsyncWithHttpInfo(userEmailActionBatch);

            return(localVarResponse.Data);
        }
        /// <summary>
        /// Apply batch operation
        /// </summary>
        /// <exception cref="Rakam.Client.Client.ApiException">Thrown when fails to make API call</exception>
        /// <param name="userEmailActionBatch"></param>
        /// <returns>Task of ApiResponse (long?)</returns>
        public async System.Threading.Tasks.Task <ApiResponse <long?> > BatchAsyncWithHttpInfo(UserEmailActionBatch userEmailActionBatch)
        {
            // verify the required parameter 'userEmailActionBatch' is set
            if (userEmailActionBatch == null)
            {
                throw new ApiException(400, "Missing required parameter 'userEmailActionBatch' when calling UseractionApi->Batch");
            }

            var    localVarPath         = "/user/action/email/batch";
            var    localVarPathParams   = new Dictionary <String, String>();
            var    localVarQueryParams  = new Dictionary <String, String>();
            var    localVarHeaderParams = new Dictionary <String, String>(Configuration.DefaultHeader);
            var    localVarFormParams   = new Dictionary <String, String>();
            var    localVarFileParams   = new Dictionary <String, FileParameter>();
            Object localVarPostBody     = null;

            // to determine the Content-Type header
            String[] localVarHttpContentTypes = new String[] {
                "application/json"
            };
            String localVarHttpContentType = Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes);

            // to determine the Accept header
            String[] localVarHttpHeaderAccepts = new String[] {
                "application/json"
            };
            String localVarHttpHeaderAccept = Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts);

            if (localVarHttpHeaderAccept != null)
            {
                localVarHeaderParams.Add("Accept", localVarHttpHeaderAccept);
            }

            // set "format" to json by default
            // e.g. /pet/{petId}.{format} becomes /pet/{petId}.json
            localVarPathParams.Add("format", "json");
            if (userEmailActionBatch != null && userEmailActionBatch.GetType() != typeof(byte[]))
            {
                localVarPostBody = Configuration.ApiClient.Serialize(userEmailActionBatch); // http body (model) parameter
            }
            else
            {
                localVarPostBody = userEmailActionBatch; // byte array
            }

            // authentication (read_key) required
            if (!String.IsNullOrEmpty(Configuration.GetApiKeyWithPrefix("read_key")))
            {
                localVarHeaderParams["read_key"] = Configuration.GetApiKeyWithPrefix("read_key");
            }

            // make the HTTP request
            IRestResponse localVarResponse = (IRestResponse)await Configuration.ApiClient.CallApiAsync(localVarPath,
                                                                                                       Method.POST, localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarFormParams, localVarFileParams,
                                                                                                       localVarPathParams, localVarHttpContentType);

            int localVarStatusCode = (int)localVarResponse.StatusCode;

            if (ExceptionFactory != null)
            {
                Exception exception = ExceptionFactory("Batch", localVarResponse);
                if (exception != null)
                {
                    throw exception;
                }
            }

            return(new ApiResponse <long?>(localVarStatusCode,
                                           localVarResponse.Headers.ToDictionary(x => x.Name, x => x.Value.ToString()),
                                           (long?)Configuration.ApiClient.Deserialize(localVarResponse, typeof(long?))));
        }
        /// <summary>
        /// Apply batch operation
        /// </summary>
        /// <exception cref="Rakam.Client.Client.ApiException">Thrown when fails to make API call</exception>
        /// <param name="userEmailActionBatch"></param>
        /// <returns>long?</returns>
        public long?Batch(UserEmailActionBatch userEmailActionBatch)
        {
            ApiResponse <long?> localVarResponse = BatchWithHttpInfo(userEmailActionBatch);

            return(localVarResponse.Data);
        }