parameters: (self, direction=None)
docstring: Sets the direction of advancing :class:`SpeedMeter` value.
  
          :param `direction`: specifying "advance" will move the hand in clock-wise direction
           (like normal car speed control), while using "reverse" will move it counterclock-wise
           direction. If defaulted to ``None``, then "advance" will be used.
docstring_summary: Sets the direction of advancing :class:`SpeedMeter` value.
docstring_tokens: Sets the direction of advancing : class : SpeedMeter value .
function: def SetDirection(self, direction=None):
          """
          Sets the direction of advancing :class:`SpeedMeter` value.
  
          :param `direction`: specifying "advance" will move the hand in clock-wise direction
           (like normal car speed control), while using "reverse" will move it counterclock-wise
           direction. If defaulted to ``None``, then "advance" will be used.
          """
  
          if direction is None:
              direction = "Advance"
  
          if direction not in ["Advance", "Reverse"]:
              raise Exception('\nERROR: Direction Parameter Should Be One Of "Advance" Or "Reverse".')
  
          self._direction = direction
function_tokens: def SetDirection ( self , direction = None ) : if direction is None : direction = "Advance" if direction not in [ "Advance" , "Reverse" ] : raise Exception ( '\nERROR: Direction Parameter Should Be One Of "Advance" Or "Reverse".' ) self . _direction = direction