QSet<QVariant> is supported ?

[nikhilqt]

QList<QVariant> list;
QSet<QVariant> varSet;
varSet = list.toSet();

QList<QVariant> list;
QSet<QVariant> varSet;
varSet = list.toSet();

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Is this not possible? Am getting error If i do so saying this overload is not supported.