code: def select_action(self, t, greedy_action_func, action_value=None):
      return greedy_action_func()
  
imports: from pfrl import explorer
label_desc: Use image node_id 1 for calling the Greedy obj's underlying member method code with example usage: obj.select_action(t, greedy_action_func, action_value) and returns: greedy_action_func