A need for toByteArray API for QQuick3DInstancing::InstanceTableEntry

The QQuick3DInstancing Class definition in the Qt Quick 3D document requires users to implement a subclass of a abstract class QQuick3DInstancing, and also a function which overrides the abstarct function getInstanceBuffer(). The function is supposed to convert InstanceTableEntry to QByteArray.
(See https://doc.qt.io/qt-6/qquick3dinstancing.html#calculateTableEntry )

Since InstanceTableEntry is not offering a function for the conversion, it should be implemented with a cast at the moment, as the snippet provided there:

QByteArray MyInstanceTable::getInstanceBuffer(int *instanceCount)
{
    QByteArray instanceData;
 
    ...
 
    auto entry = calculateTableEntry({xPos, yPos, zPos}, {xScale, yScale, zScale}, {xRot, yRot, zRot}, color, {});
    instanceData.append(reinterpret_cast<const char *>(&entry), sizeof(entry));

A more sophisticated way (e.g. QByteArray InstanceTableEntry::toByteArray() const) should be considered.