code: def __init__(self):
      self.o = (
          dict()
      )  # orders per data (main, stop, limit, manual-close)
      self.holding = dict()
  
file_path: backtrader/samples/multi-example/mult-values.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 to create a new St object from inherited base classes: bt with example: obj = St()