value property
The nearest ancestor implementing T.
Throws a StateError if the host is not mounted, or if nothing in its
ancestry implements T, unless T is nullable.
Implementation
T get value => _value ??= _find();The nearest ancestor implementing T.
Throws a StateError if the host is not mounted, or if nothing in its
ancestry implements T, unless T is nullable.
T get value => _value ??= _find();