whereFamily method
Creates a WidgetSelector that finds all EditableText where family matches the condition.
Example usage:
spot<EditableText>().whereFamily((it) => it.equals('foo')).existsOnce();
Implementation
@useResult
WidgetSelector<EditableText> whereFamily(MatchProp<String> match) {
return withDiagnosticProp<String>('family', match);
}