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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_action(self, action, add_to_toolbar=True, add_to_legend=False):
 """Add a toolbar icon to the InaSAFE toolbar. :param action: The action that should be added to the toolbar. :type action: QAction :param add_to_toolbar: Flag indicating whether the action should also be added to the InaSAFE toolbar. Defaults to True. :type add_to_toolbar: bool :param add_to_legend: Flag indicating whether the action should also be added to the layer legend menu. Default to False. :type add_to_legend: bool """

        # store in the class list of actions for easy plugin unloading
        self.actions.append(action)
        self.iface.addPluginToMenu(self.tr('InaSAFE'), action)
        if add_to_toolbar:
            self.toolbar.addAction(action)
        if add_to_legend:
            # The id is the action name without spaces, tabs ...
            self.iface.addCustomActionForLayerType(
                action,
                self.tr('InaSAFE'),
                QgsMapLayer.VectorLayer,
                True)
            self.iface.addCustomActionForLayerType(
                action,
                self.tr('InaSAFE'),
                QgsMapLayer.RasterLayer,
                True)