truncated property
Truncated says this pair holds more assertions than one read returns, so the winner was decided from the most recent ceiling-full of them. It is reported because a provenance plane that trims silently is a plane that answers confidently and wrongly; narrow the question with as_of to see what it dropped.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
bool? truncated;