def get_appointment_group(self, appointment_group):
from canvasapi.appointment_group import AppointmentGroup<EOL>appointment_group_id = obj_or_id(<EOL>appointment_group, "<STR_LIT>", (AppointmentGroup,)<EOL>)<EOL>response = self.__requester.request(<EOL>'<STR_LIT:GET>',<EOL>'<STR_LIT>'.format(appointment_group_id)<EOL>)<EOL>return AppointmentGroup(self.__requester, response.json())<EOL>
Return single Appointment Group by id

:calls: `GET /api/v1/appointment_groups/:id \
<https://canvas.instructure.com/doc/api/appointment_groups.html#method.appointment_groups.show>`_

:param appointment_group: The ID of the appointment group.
:type appointment_group: :class:`canvasapi.appointment_group.AppointmentGroup` or int

:rtype: :class:`canvasapi.appointment_group.AppointmentGroup`