code: def stop(self):
      stopTime = self.watch.read()
      self.elapsedTime += stopTime - self.startTime
      return self
  
file_path: blazingsql/tests/BlazingSQLTest/DemoTest/chronometer.py
imports: import time
label_desc: Use image node_id 7 for calling the Chronometer obj's underlying member method code with example usage: obj.stop() and returns: self