make communicator singleton

communicator.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 import requests
+from singleton import Singleton
 
 """
 Communicator module
@@ -11,15 +12,10 @@ __copyright__ = "Copyright 2020, GoldenPogácsa Team"
 __module_name__ = "messagesender"
 __version__text__ = "1"
 
-class Communicator:
+class Communicator(Singleton):
     """
     Class handling low level communication with consumers.
     """
-    def __init__(self):
-        """
-        Initalize class
-        """
-        pass
 
     def sendmessage(self, message: str) -> None:
         """