Hi,

Its just another object property

https://metacpan.org/pod/XML::LibXML::Element#setNamespaceDeclURI 

$node->setNamespaceDeclURI(undef, undef);

[download]

In reply to Re^2: copyCurrentNode in XML::LibXML::Reader will add xmlns attribute ( setNamespaceDeclURI ) by beech
in thread copyCurrentNode in XML::LibXML::Reader will add xmlns attribute by mjfan

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