Function xmlCopyNode 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlCopyNode(
    node: *const _xmlNode,
    extended: c_int,
) -> *mut _xmlNode

Copy a node.

UPSTREAM-PARITY

xmlNodePtr xmlCopyNode(const xmlNodePtr node, int extended);

If extended is 1, copies recursively (deep copy). If extended is 0, copies only the node itself (shallow copy).

Returns a newly allocated copy. Caller must free with xmlFreeNode.