public IActionResult SelectRoom(RoomDocumentModel roomDocumentModel)
        {
            // Step 1. Obtain your OAuth token
            string accessToken = RequestItemsService.User.AccessToken;                      // Represents your {ACCESS_TOKEN}
            var    basePath    = $"{RequestItemsService.Session.RoomsApiBasePath}/restapi"; // Base API path
            string accountId   = RequestItemsService.Session.AccountId;                     // Represents your {ACCOUNT_ID}

            try
            {
                // Get Room Documents
                var documents = CreateExternalFormFillSession.GetDocuments(basePath, accessToken, accountId, roomDocumentModel.RoomId);

                RoomDocumentModel.Documents = documents.Documents;

                return(View("Eg06", this));
            }
            catch (ApiException apiException)
            {
                ViewBag.errorCode    = apiException.ErrorCode;
                ViewBag.errorMessage = apiException.Message;

                return(View("Error"));
            }
        }