$dumper->loadWithArgv( [ '--full', '--quiet', '--output', 'file:' . $fname, '--stub' ] );
$dumper->startId = $this->pageId1;
$dumper->endId = $this->pageId4 + 1;
$dumper->loadWithArgv( [ '--full', '--quiet', '--output', 'file:' . $fname, '--stub' ] );
$dumper->startId = $this->pageId1;
$dumper->endId = $this->pageId4 + 1;