levels abstract method

Implementation

TRes levels(
    Iterable<Query$getQuestionsbyFormWithResponsesStatsPaginated$getQuestionsbyFormWithResponsesStatsPaginated$objects$settings$smiley$levels>? Function(
            Iterable<
                CopyWith$Query$getQuestionsbyFormWithResponsesStatsPaginated$getQuestionsbyFormWithResponsesStatsPaginated$objects$settings$smiley$levels<
                    Query$getQuestionsbyFormWithResponsesStatsPaginated$getQuestionsbyFormWithResponsesStatsPaginated$objects$settings$smiley$levels>>?)
        _fn);