实现
构造函数
new ParentalControlsPreferenceReaderTmGlue()
new ParentalControlsPreferenceReaderTmGlue(): ParentalControlsPreferenceReaderTmGlue返回值
ParentalControlsPreferenceReaderTmGlue方法
getContentRestrictionLevel()
getContentRestrictionLevel():Promise<IContentRestrictionLevel>
返回值
Promise<IContentRestrictionLevel>
isEnabled()
isEnabled():Promise<boolean>
返回值
Promise<boolean>

