code: def next(self):
      if not self.position and self.crossup > 0:
          # not in the market and signal triggered
          self.buy()
  
          if not self.p.trail:
              stop_price = self.data.close[0] * (1.0 - self.p.stop_loss)
              self.sell(exectype=bt.Order.Stop, price=stop_price)
          else:
              self.sell(
                  exectype=bt.Order.StopTrail, trailamount=self.p.trail
              )
  
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 ManualStopOrStopTrailCheat obj's underlying member method code with example usage: obj.next() without return types