code: def send_notifications(self, notification_data):
          
          content = self._serialize.body(notification_data, 'NotificationsData')
          self._send(http_method='POST',
                     location_id='eab39817-413c-4602-a49f-07ad00844980',
                     version='5.1-preview.1',
                     content=content)
docs: SendNotifications.
          [Preview API] Send Notification
          :param :class:`<NotificationsData> <azure.devops.v5_1.gallery.models.NotificationsData>` notification_data: Denoting the data needed to send notification