def get_user(self, id = None):
if not id:<EOL><INDENT>id = self._user.id<EOL><DEDENT>if id not in self._users:<EOL><INDENT>self._users[id] = self._user if id == self._user.id else User(self, id)<EOL><DEDENT>return self._users[id]<EOL>
Get user.

        Returns:
            :class:`User`. User