Do not import fcm module at top level in models.py

push_notifications/models.py

@@ -58,9 +58,7 @@ def get_queryset(self):
 class GCMDeviceQuerySet(models.query.QuerySet):
 	def send_message(self, message, **kwargs):
 		if self.exists():
-			from firebase_admin import messaging
-
-			from .gcm import dict_to_fcm_message
+			from .gcm import dict_to_fcm_message, messaging
 			from .gcm import send_message as fcm_send_message
 
 			if not isinstance(message, messaging.Message):
@@ -109,9 +107,7 @@ class Meta:
 		verbose_name = _("FCM device")
 
 	def send_message(self, message, **kwargs):
-		from firebase_admin import messaging
-
-		from .gcm import dict_to_fcm_message
+		from .gcm import dict_to_fcm_message, messaging
 		from .gcm import send_message as fcm_send_message
 
 		# GCM is not supported.