Identifier constructor
Identifier({})
Implementation
Identifier({
String? id,
String? assigner,
String? start,
String? end,
String? system,
CodeStub? type,
String? use,
String? value
}) : id = id ?? null,
assigner = assigner ?? null,
start = start ?? null,
end = end ?? null,
system = system ?? null,
type = type ?? null,
use = use ?? null,
value = value ?? null;