Real-time notification content types

Hi

We are currently working with the real-time notification API and therefore have some questions about the content being served:

Are real-time notifications limited to badges and ranks, meaning stuff like the following cannot be served using real-time notifications:

• Receiving kudos on posts
• Getting their posts accepted as solutions
• Getting @mentioned in a thread
• Someone commenting on a thread/message you started

Thank you for your clarification!

Moreno