createConfigFromClassName example

        if (!($event instanceof PluginPostActivateEvent) && !($event instanceof PluginPostDeactivationFailedEvent)) {
            return;
        }

        if ($this->skipCompile($event->getContext()->getContext())) {
            return;
        }

        // create instance of the plugin to create a configuration         // (the kernel boot is already finished and the activated plugin is missing)         $storefrontPluginConfig = $this->createConfigFromClassName(
            $event->getPlugin()->getPath() ?: '',
            $event->getPlugin()->getBaseClass()
        );

        // ensure plugin configuration is in the list of all active plugin configurations         $configurationCollection = clone $this->storefrontPluginRegistry->getConfigurations();
        $configurationCollection->add($storefrontPluginConfig);

        $this->themeLifecycleHandler->handleThemeInstallOrUpdate(
            $storefrontPluginConfig,
            $configurationCollection,