# The XML Namespace URI as a constant.
	#
	# The value is `http://www.w3.org/XML/1998/namespace`
	# as defined in the “Namespaces in XML” specification.
	#
	# This is the Namespace URI that is automatically mapped
	# to the `xml` prefix.
	var xmlns = "http://www.w3.org/XML/1998/namespace"