def merge_into(self, destination_user):
dest_user_id = obj_or_id(destination_user, '<STR_LIT>', (User, ))<EOL>response = self._requester.request(<EOL>'<STR_LIT>',<EOL>'<STR_LIT>'.format(self.id, dest_user_id),<EOL>)<EOL>super(User, self).set_attributes(response.json())<EOL>return self<EOL>
Merge this user into another user.

:calls: `PUT /api/v1/users/:id/merge_into/:destination_user_id \
<https://canvas.instructure.com/doc/api/users.html#method.users.merge_into>`_

:param destination_user: The object or ID of the user to merge into.
:type destination_user: :class:`canvasapi.user.User` or int

:rtype: :class:`canvasapi.user.User`