code: def notify_order(self, order):
      if order.status == order.Completed:
          print(
              "-- {} Buy Exec @ {}".format(
                  self.data.datetime.datetime(), order.executed.price
              )
          )
  
file_path: backtrader/samples/timers/scheduled-min.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import argparse
  import datetime
  import backtrader
label_desc: Use image node_id 5 for calling the St obj's underlying member method code with example usage: obj.notify_order(order) without return types