external node_get_ns_uri : mDOMNode -> mDOMString option = "ml_node_get_ns_uri"
external node_get_attribute : mDOMNode -> mDOMString -> mDOMString option = "ml_node_get_attribute"
external node_get_attribute_ns : mDOMNode -> mDOMString -> mDOMString -> mDOMString option = "ml_node_get_attribute_ns"
external node_get_ns_uri : mDOMNode -> mDOMString option = "ml_node_get_ns_uri"
external node_get_attribute : mDOMNode -> mDOMString -> mDOMString option = "ml_node_get_attribute"
external node_get_attribute_ns : mDOMNode -> mDOMString -> mDOMString -> mDOMString option = "ml_node_get_attribute_ns"