title: how to send different push notifications from python server to multiple android devices?
body: <p>We have a python script which do specific job and we want when it see the trigger occurred , it sends a push notification to android devices 
  but we don't want to send a default message to all of our users.
  we want to send customize message based on the trigger to our users 
  for example :</p>
  
  <pre><code>"user1" the "trigger" hits.
  "user2" the "trigger" hits.
  </code></pre>
  
  <p>.
  .
  can you help me how to send different messages to different unique android IDs?</p>