code: def __init__(self):
      self.curdate = datetime.date.min
      self.elapsed = 0
      self.order = None
  
file_path: backtrader/samples/order-close/close-minute.py
imports: from __future__ import absolute_import, division, print_function
  import argparse
  import datetime
  import backtrader
  import backtrader.feeds
label_desc: Use image node_id 1 to create a new St object from inherited base classes: bt with example: obj = St()