code: def next2(self):
      pass
  
file_path: backtrader/samples/calmar/calmar-test.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import argparse
  import datetime
  import backtrader
label_desc: Use image node_id 2 for calling the St obj's underlying member method code with example usage: obj.next2() without return types