Adding players to teams

[PureTryOut]

I am messing around with the team function, and I want to add several players to an already made team.
However, the documentation is really vague about this.

To be exact, this is the description of "AddPlayer":

Code:

Adds a player to this team. Returns true if the operation was successful.

Together with it requiring a string as parameter, you would think this is clear enough. However, I have no clue if I have to give it the player UUID, or just the player name. I'm guessing UUID since that would be the most robust (won't break if a player changes his nickname), but I'm really not sure.

Could the documentation be changed so it makes this a bit more clear?