code: def next(self):
      txt = []
      txt.append("{:04d}".format(len(self)))
      txt.append("{:04d}".format(len(self.data0)))
      txt.append(self.data0.datetime.datetime())
      txt.append("{:.2f}".format(self.data0.close[0]))
      txt.append("PSAR")
      txt.append("{:04.2f}".format(self.psar0[0]))
      if len(self.data1):
          txt.append("{:04d}".format(len(self.data1)))
          txt.append(self.data1.datetime.datetime())
          txt.append("{:.2f}".format(self.data1.close[0]))
          txt.append("PSAR")
          txt.append("{:04.2f}".format(self.psar1[0]))
  
      print(",".join(str(x) for x in txt))
  
file_path: backtrader/samples/psar/psar-intraday.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import argparse
  import datetime
  import backtrader
label_desc: Use image node_id 2 for calling the St obj's underlying member method code with example usage: obj.next() without return types