interfacemarkdown.ListItemMetainterface ListItemMetaMeta passed to the listItem callback.checked?: booleanTask list checked state. Set for - [x] / - [ ] items.depth: numberNesting depth of the parent list. 0 for items in a top-level list.index: number0-based index of this item within its parent list.ordered: booleanWhether the parent list is ordered.start?: numberThe start number of the parent list (only set when ordered is true).