title: Message throttling in GCM / FCM push notification
body: <p>I would like to know what is called Message throttling in Google FCM push notification? I am trying to implement a sample push notification using FCM, but didn't understand about message throttling mentioned in their steps. There is no documentation also found about it.</p>
  
  <p><a href="https://aerogear.org/docs/unifiedpush/aerogear-push-android/guides/#google-setup" rel="nofollow">https://aerogear.org/docs/unifiedpush/aerogear-push-android/guides/#google-setup</a></p>
  
  <p>Could someone clarify about this term?</p>