parameters: (self)
docstring: open serial port
docstring_summary: open serial port
docstring_tokens: open serial port
function: def Open_Engine(self):
          """
          open serial port
          """
          global Ret
          # If the serial port is not open, open the serial port
          if not self.main_engine.is_open:
              self.main_engine.open()
              Ret = True
function_tokens: def Open_Engine ( self ) : global Ret # If the serial port is not open, open the serial port if not self . main_engine . is_open : self . main_engine . open ( ) Ret = True