def add_recipients(self, recipients):
response = self._requester.request(<EOL>'<STR_LIT:POST>',<EOL>'<STR_LIT>'.format(self.id),<EOL>recipients=recipients<EOL>)<EOL>return Conversation(self._requester, response.json())<EOL>
Add a recipient to a conversation.

:calls: `POST /api/v1/conversations/:id/add_recipients \
<https://canvas.instructure.com/doc/api/conversations.html#method.conversations.add_recipients>`_

:param recipients: A list of string format recipient ids.
    These may be user ids or course/group ids prefixed
    with 'course\\_' or 'group\\_' respectively,
    e.g. recipients['1', '2', 'course_3']
:type recipients:  `list` of `str`
:rtype: :class:`canvasapi.account.Conversation`