select method
Sets the range with the given ID as the "current selection" -- the range that'll get updated when the user clicks on the calendar.
Implementation
CalendarState select(String? id, {bool previewAnchoredAtStart = false}) =>
CalendarState(
selections: selections,
currentSelection: id,
cause: CausedBy.external,
previewAnchoredAtStart: previewAnchoredAtStart,
resolution: resolution);