\x89\x50\x4E\x47\x0D\x0A\x1A\x0A PNG  \x89\x50\x4E\x47\x0D\x0A\x1A\x0A # frozen_string_literal: false require 'rexml/parseexception' module REXML class UndefinedNamespaceException < ParseException def initialize( prefix, source, parser ) super( "Undefined prefix #{prefix} found" ) end end end