PySide2 QPixmap.loadFromData not taking bytes or QBytesArray as documentation states

When trying to create a QPixmap from data as illustrated in the code below:

curQImage = QPixmap.loadFromData(imgDataBytes) # imgDataBytes type is bytes

I get the following error message:

curQImage = QPixmap.loadFromData(imgDataBytes).scaledToWidth(
TypeError: descriptor 'loadFromData' requires a 'PySide2.QtGui.QPixmap' object but received a 'bytes'

This doesn't make any sense, why would a QPixmap.loadFromData expect a PySide2.QtGui.QPixmap instead of bytes or a QByteArray ?

See Documentation:

The same code and data works fine with a QImage (which is my workaround for now):

curQImage = ImageFromData.fromData(imgDataBytes)

Thanks.