def METHOD_NAME(self, total_files, total_size):
    text = _("Downloading :  %(files)d files,  %(size)d bytes") % {'files': total_files, 'bytes': total_size}
    print (text)
    self._setLabel(self.label_widget, text)
    self.total_files = total_files
    self.total_size = total_size
    self.download_files = 0
    self.download_size = 0.0
    self.progressbar.setValue(0)
    self.wrongValue.setValue("")