<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def list(self, page=1, per_page=10):
 """List a page of chats. :param int page: which page :param int per_page: how many chats per page :return: chats with other users :rtype: :class:`~groupy.pagers.ChatList` """

        return pagers.ChatList(self, self._raw_list, per_page=per_page,
                               page=page)