parameters: (self, value)
docstring: !
          Set selected function.
  
          @param self: class object.
          @param value: selected value
          @return none
docstring_summary: !
          Set selected function.
docstring_tokens: ! Set selected function .
function: def _set_selected(self, value):
          """!
          Set selected function.
  
          @param self: class object.
          @param value: selected value
          @return none
          """
          self._selected = value
          self._update_appearance()
function_tokens: def _set_selected ( self , value ) : self . _selected = value self . _update_appearance ( )