# File lib/libxml/sax_callbacks.rb, line 166
        def on_start_element_ns(name, attributes, prefix, uri, namespaces)
          STDOUT << "on_start_element_ns" << "\n" <<
                    "  name: " << name << "\n" <<
                    "  attr: " << (attributes || Hash.new).inspect << "\n" <<
                    "  prefix: " << prefix << "\n" <<
                    "  uri: " << uri << "\n" <<
                    "  ns_defs: " << (namespaces || Hash.new).inspect << "\n"
          STDOUT.flush
        end