number property
Number is the item's number ON ITS BOARD, from 1 and monotonic there — the forge's own issue number for a forge row, allocated inside the create transaction for an index row so it cannot race. Unique per board, never across the org.
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? number;