Function IsMultiClassOnlyMetric

catboost/private/libs/options/enum_helpers.cpp:668–673

}

bool IsMultiClassOnlyMetric(ELossFunction loss) {
    auto info = GetInfo(loss);
    return IsClassificationOnlyMetric(loss)
        && info->HasFlags(EMetricAttribute::IsMultiClassCompatible)
        && info->MissesFlags(EMetricAttribute::IsBinaryClassCompatible);
}

bool IsClassificationObjective(ELossFunction loss) {
    return IsIn(ClassificationObjectives, loss);