SpiceDB is an open source, Google Zanzibar-inspired, database system for creating and managing security-critical application permissions.

SpiceDB

Hi guy,
I am quite new to Authzed and SpiceDB. So I was watching this modeling video [https://www.youtube.com/watch?v=x3-B9-ICj0w&t=766s]
and I saw @Jimmy @jake writing relationships like `repository:authzed_go#reader@user:jake#...` 
I understand most part of it, but I don't really understand what does `#...` mean? I have not been able to find any documentation regarding `#...`
Could anyone please explain what does `#...` mean at the end of the relationship.

Thanks a lot 🙏