#NEWLINE# @ log_function #NEWLINE# def user_joined_room( self , user , room_id ) : #NEWLINE# #INDENT# waiters = self . waiting_for_join_list . get ( ( user . to_string ( ) , room_id ) , [ ] ) #NEWLINE# while room_id : #NEWLINE# #INDENT# waiters . pop ( ) . callback ( None )