What's the difference between `createAdminClient` and `createSessionClient`

[strange compass]

https://appwrite.io/docs/tutorials/nextjs-ssr-auth/step-3

and when I should use admin instead of session one?

I saw only that with oAuth, the createAdminClient used

[empty oar]

Admin clients are related to SSR. You use it to create sessions server side

Or do other server-side operations with an API key