code: def get_param(self, name):
      if name not in self.__params:
          raise IndexError(
              "ERROR: Action '%s' does not have parameter '%s'"
              % (self.__action, len(self.__params))
          )
  
      return self.__params[name]
  
label_desc: Use image node_id 4 for calling the task obj's underlying member method code with example usage: obj.get_param(name) and returns: self