raw as read from storage or a file, promoted to version 2 if it is a version-1 object; anything else (already version 2, or not a dashboard at all) passes through untouched for validateDashboardSpec to judge.
raw
validateDashboardSpec
rawas read from storage or a file, promoted to version 2 if it is a version-1 object; anything else (already version 2, or not a dashboard at all) passes through untouched forvalidateDashboardSpecto judge.