class Aws::Xml::Builder

def shape_attrs(ref)
  if (xmlns = ref['xmlNamespace'])
    case xmlns
    when String
      { 'xmlns' => xmlns }
    when Hash
      if (prefix = xmlns['prefix'])
        { "xmlns:#{prefix}" => xmlns['uri'] }
      else
        { 'xmlns' => xmlns['uri'] }
      end
    end
  else
    {}
  end
end