Optional child_IDs of this node's direct children. An object seen before is not reported twice: its first ID is referenced instead.
From makeReportId; "root" for the root and the discovery index otherwise by default.
Depth in the error tree; the root is 0.
JSONPath from the root caught object, e.g. $.cause.errors[0].
One node of a flattened error tree: an element of CorjReport.children, or of the array produced by makeCorjArray whose first element is the root.