fromMap method
Restore the saved state
Implementation
void fromMap(Map map) {
var _ = map['values'];
for (var v in _.keys) _values[v]!._setFromJson(_[v]);
// fireWatchers();
}
Restore the saved state
void fromMap(Map map) {
var _ = map['values'];
for (var v in _.keys) _values[v]!._setFromJson(_[v]);
// fireWatchers();
}