docs: def add_widget(self):
          """
          Adds the Component Widget to the engine.
  
          :return: Method success.
          :rtype: bool
          """
  
          LOGGER.debug("> Adding '{0}' Component Widget.".format(self.__class__.__name__))
  
          self.__engine.addDockWidget(Qt.DockWidgetArea(self.__dock_area), self)
  
          return True