OptionalcompletedOptionaldescriptionThe Checklist Item description.
The id of the Checklist Item to update.
Optionalset_One of "first", "last", "before", or "after". This can be used to move the Checklist Item to the first or last position in the Story's checklist, or before or after a given Checklist Item.
True/false boolean indicating whether the Checklist Item is completed. Defaults to false.