text: #!/usr/bin/env python3
  
  from gcm import GCM
  
  # Topic Messaging
  
  API_KEY = "your api key"
  
  gcm = GCM('api key')
  data = {'param1': 'value1', 'param2': 'value2'}
  topic = 'your topic name'
  
  response = gcm.send_topic_message(topic=topic, data=data)
  
  print(response)
  