set
Renames a saved card so the member can tell two cards apart.
The server rejects a nickname that is not 3-30 characters of letters, digits, spaces, underscores or periods, that starts or ends with a symbol or space, or that contains two symbols or spaces in a row. Completes when the new name is saved.
Parameters
saved
nickname
The new card name.
Throws
if the request fails - an AFException carrying the server's message when the nickname is rejected.