events property
Events is how many DISTINCT judged events those assertions name, keyed on (kind, subject, at). It counts only events something was ASSERTED about: what share of the whole event stream carries a label is a question about the feature plane's denominator and is not answerable here. Matured + Unmatured is Events.
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
int? events;