code: def getParameter(self, objID, param):
          
          self._connection._beginMessage(
              self._cmdGetID, tc.VAR_PARAMETER, objID, 1 + 4 + len(param))
          self._connection._packString(param)
          result = self._connection._checkResult(
              self._cmdGetID, tc.VAR_PARAMETER, objID)
          return result.readString()
docs: getParameter(string, string) -> string
  
          Returns the value of the given parameter for the given objID