Type guard: checks if a value is an IsolationSubtreeFilter created by subtreeOf(). Used in the wiring validation path to distinguish structural resource references from flat id strings or tag definitions in deny/only policy entries.
IsolationSubtreeFilter
subtreeOf()
Type guard: checks if a value is an
IsolationSubtreeFiltercreated bysubtreeOf(). Used in the wiring validation path to distinguish structural resource references from flat id strings or tag definitions in deny/only policy entries.