code: def track_trace(self, name, properties=None, severity=None):
          
          data = channel.contracts.MessageData()
          data.message = name or NULL_CONSTANT_STRING
          if properties:
              data.properties = properties
          if severity is not None:
              data.severity_level = channel.contracts.MessageData.PYTHON_LOGGING_LEVELS.get(severity)
  
          self.track(data, self._context)
docs: Sends a single trace statement.
  
          Args:
              name (str). the trace statement.\n
              properties (dict). the set of custom properties the client wants attached to this data item. (defaults to: None)\n
              severity (str). the severity level of this trace, one of DEBUG, INFO, WARNING, ERROR, CRITICAL