*<Null safety>*
IntProperty? intProperty (String name)
IntProperty? intProperty(String name) { if (_writer == null) { return IntProperty.deleted(); } if (_properties.containsKey(name)) { if (_properties[name] is! IntProperty) { throw InspectStateError( "Can't create IntProperty named $name; a different type exists."); } return _properties[name] as IntProperty?; } return _properties[name] = IntProperty._(name, this, _writer!); }