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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 launch(self, host="local", port=8080):
 """Calling the Launch method on a Site object will serve the top node of the cherrypy Root object tree"""


        # Need to add in the appbar if many apps
        self.root.templateVars['app_bar'] = self.site_app_bar
        for fullRoute, _ in self.site_app_bar[1:]:
            parent, route = self.get_route(fullRoute)
            parent.__dict__[route].templateVars['app_bar'] = self.site_app_bar

        if host != "local":
            cherrypy.server.socket_host = '0.0.0.0'
        cherrypy.server.socket_port = port
        cherrypy.quickstart(self.root)