Optionalattrs: Readonly<Record<string, unknown>>Letter spacing on the selection; null removes it.
Line height on the selected blocks; a bare number is a multiplier.
Optionaltitle: stringSet the marker style of the list at the selection; null clears it.
Apply a mark with attributes, replacing any existing one of its type.
Space above and/or below the selected blocks.
Optionalattrs: Readonly<Record<string, unknown>>Flip the done state of the task item holding the selection.
Optionalattrs: Readonly<Record<string, unknown>>
Rewrite the selected text to upper, lower or title case.