controller property
Implementation
static final controller = WriterCtrl(
extend: EventFractal.controller,
make: (d) => switch (d) {
MP() => WriterFractal.fromMap(d),
Object() || null => throw ('wrong rewriter given')
},
attributes: <Attr>[
Attr(
name: 'attr',
format: FormatF.text,
isImmutable: true,
),
],
);