What is the associate type of QList<QPair<double, QString>> in qml?

[stereoMatching]

class whatever: public QObject
{
    Q_OBJECT
public:
    explicit generalUnitConverter(QObject *parent = nullptr);
 
    QList<QPair<double, QString>> do_something();    
}

class whatever: public QObject
{
    Q_OBJECT
public:
    explicit generalUnitConverter(QObject *parent = nullptr);
 
    QList<QPair<double, QString>> do_something();    
}

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How could I access the data return by do_something in qml?