def headerData(self, section: int, orientation: Qt.Orientation, role: int=...):
    if (role != Qt.DisplayRole):
        return None
    if (orientation == Qt.Horizontal):
        return self.mHeaders[section]
    return QVariant()
def headerData(self, section: int, orientation: Qt.Orientation, role: int=...):
    if (role != Qt.DisplayRole):
        return None
    if (orientation == Qt.Horizontal):
        return self.mHeaders[section]
    return QVariant()