original_docstring: 
          Callback when strategy is stopped.
          
docstring: Callback when strategy is stopped.
docstring_tokens: Callback when strategy is stopped .
code: def on_stop(self):
          """
          Callback when strategy is stopped.
          """
          self.write_log("策略停止")
code_tokens: def on_stop ( self ) : self . write_log ( "策略停止") 
short_docstring: Callback when strategy is stopped.
short_docstring_tokens: Callback when strategy is stopped .
comment: """
          Callback when strategy is stopped.
          """