code: def start(self):
      if self.p.prtrade:
          print(
              ",".join(
                  [
                      "TRADE",
                      "Status",
                      "Date",
                      "Value",
                      "PnL",
                      "Commission",
                  ]
              )
          )
      if self.p.prorder:
          print(
              ",".join(
                  [
                      "ORDER",
                      "Type",
                      "Date",
                      "Price",
                      "Size",
                      "Commission",
                  ]
              )
          )
      if self.p.prdata:
          print(
              ",".join(["DATA", "Action", "Date", "Price", "PctDown"])
          )
  
file_path: backtrader/samples/btfd/btfd.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 for calling the St obj's underlying member method code with example usage: obj.start() without return types