public function save()
    {
        $filepath = $this->getFilepath();
        $this->validateConfig($this->rules, $this->configData);
        $fileSystem = $this->createNew(FileSystem::class);
        $fileSystem->filePutContents($filepath, json_encode($this->configData, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
    }