code: def _get_service_connection(self, service, service_command=None, create=True, timeout_ms=None):
          
  
          connection = self._service_connections.get(service, None)
  
          if connection:
              return connection
  
          if not connection and not create:
              return None
  
          if service_command:
              destination_str = b'%s:%s' % (service, service_command)
          else:
              destination_str = service
  
          connection = self.protocol_handler.Open(
              self._handle, destination=destination_str, timeout_ms=timeout_ms)
  
          self._service_connections.update({service: connection})
  
          return connection
docs: Based on the service, get the AdbConnection for that service or create one if it doesnt exist
  
          :param service:
          :param service_command: Additional service parameters to append
          :param create: If False, dont create a connection if it does not exist
          :return: