sub _parse_bytestream {
    my ( $self, $fh ) = @_;
 
    $self->{ParserOptions}{LibParser}      = XML::LibXML->new;
    $self->{ParserOptions}{ParseFunc}      = \&XML::LibXML::parse_fh;
    $self->{ParserOptions}{ParseFuncParam} = $fh;
    $self->_parse;
    return $self->end_document({});
}