isDanglingReference function
Determines whether the given data
is a reference that points to a non-existent object.
Implementation
bool isDanglingReference(
Object? data,
NormalizationConfig config,
) {
if (data is Map && data.containsKey(config.referenceKey)) {
final referencedData = config.read(data[config.referenceKey]);
if (referencedData == null) return true;
}
return false;
}