sax :: Attributes :: local_name
	# Look up an attribute's local name by index.
	#
	# Parameters:
	#
	# * `index`: attribute index.
	#
	# Returns:
	#
	# The local name, or the empty string if Namespace
	# processing is not being performed, or `null`
	# if the index is out of range.
	#
	# SEE: `length`
	fun local_name(index: Int): nullable String is abstract
					lib/sax/attributes.nit:68,2--81,56