days property
Days is how far back to read when no start is given: 1 to 365, 30 by default. A value outside that range leaves the default in place.
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? days;