code: def get_appointment_group(self, appointment_group):
          
          from canvasapi.appointment_group import AppointmentGroup
  
          appointment_group_id = obj_or_id(
              appointment_group, "appointment_group", (AppointmentGroup,)
          )
  
          response = self.__requester.request(
              'GET',
              'appointment_groups/{}'.format(appointment_group_id)
          )
          return AppointmentGroup(self.__requester, response.json())
docs: 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`