diff --git a/flask_pyfcm.py b/flask_pyfcm.py
index 961f697..584027e 100644
--- a/flask_pyfcm.py
+++ b/flask_pyfcm.py
@@ -9,6 +9,26 @@
 except ImportError:
     from flask import _request_ctx_stack as stack
 
+class NotificationBuilder(object):
+
+    def __init__(self):
+        pass
+
+    def build(self):
+        pass
+
+    def message_title(self, title):
+        pass
+
+    def message_body(self, body):
+        pass
+
+    def message_icon(self, icon):
+        pass
+
+    def message_sound(self, sound):
+        pass
+
 
 class FCM(object):
     FCM_INVALID_ID_ERRORS = [
@@ -39,7 +59,7 @@ def push_service(self):
             return ctx.fcm_service
 
     def notify_single_device(self, registration_id, *args, **kwargs):
-        self.notify_multiple_devices([registration_id], **kwargs)
+        return self.notify_multiple_devices([registration_id], **kwargs)
 
     def notify_multiple_devices(self, registration_ids, **kwargs):
         response = self.push_service.notify_multiple_devices(registration_ids,