# File lib/soap/encodingstyle/handler.rb, line 97
  def encode_attr_key(attrs, ns, qname)
    if qname.namespace.nil?
      qname.name
    else
      unless ns.assigned_as_tagged?(qname.namespace)
        Generator.assign_ns!(attrs, ns, qname.namespace)
      end
      ns.name_attr(qname)
    end
  end