code: def __init__(self):
      print("Creating Empty Strategy")
      pass
  
file_path: backtrader/samples/order-history/order-history.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import argparse
  import datetime
  import backtrader
label_desc: Use image node_id 3 to create a new St object from inherited base classes: bt with example: obj = St()