code: def notify_order(self, order):
      if order.status == order.Submitted:
          return
  
      dt, dn = self.datetime.date(), order.data._name
      print(
          "{} {} Order {} Status {}".format(
              dt, dn, order.ref, order.getstatusname()
          )
      )
  
      whichord = ["main", "stop", "limit", "close"]
      if not order.alive():  # not alive - nullify
          dorders = self.o[order.data]
          idx = dorders.index(order)
          dorders[idx] = None
          print("-- No longer alive {} Ref".format(whichord[idx]))
  
          if all(x is None for x in dorders):
              dorders[:] = []
  
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 1 for calling the St obj's underlying member method code with example usage: obj.notify_order(order) without return types