code: def on_dt_over(self):
      pass
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import calendar
  from collections import OrderedDict
  import datetime
  import pprint
  import backtrader
  from backtrader import TimeFrame
  from backtrader.utils.py3 import MAXINT, with_metaclass
label_desc: Use image node_id 5 for calling the TimeFrameAnalyzerBase obj's underlying member method code with example usage: obj.on_dt_over() without return types