period property
Period is the accrual bucket: the UTC year-month, "YYYY-MM". Commission is latched at most once per referred org per period, so one row is one month.
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
String? period;