code: def next(self):
      # Access -1, because drawdown[0] will be calculated after "next"
      self.log("DrawDown: %.2f" % self.stats.drawdown.drawdown[-1])
      self.log(
          "MaxDrawDown: %.2f" % self.stats.drawdown.maxdrawdown[-1]
      )
  
      # Check if we are in the market
      if self.position:
          if self.buysell < 0:
              self.log("SELL CREATE, %.2f" % self.data.close[0])
              self.sell()
  
      elif self.buysell > 0:
          self.log("BUY CREATE, %.2f" % self.data.close[0])
          self.buy()
  
file_path: backtrader/samples/observers/observers-default-drawdown.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import argparse
  import datetime
  import os.path
  import time
  import sys
  import backtrader
  import backtrader.feeds
  import backtrader.indicators
label_desc: Use image node_id 3 for calling the MyStrategy obj's underlying member method code with example usage: obj.next() without return types