Remove subdocument from array in MongoDB

1    const [updatedSlotError, updatedSlot] = await SafeAwait(
2      SlotModel.update(
3        { _id: ObjectId(slot._id) },
4        {
5          $pull: {
6            'appointments.$[i].comments': { _id: commentId },
7          },
8        },
9        {
10          arrayFilters: [
11            {
12              'i._id': ObjectId(appointment._id),
13            },
14          ],
15        }
16      )
17    );