class AWS::S3::Client

def parse_copy_part_response resp
  doc = REXML::Document.new(resp.http_response.body)
  resp[:etag] = doc.root.elements["ETag"].text
  resp[:last_modified] = doc.root.elements["LastModified"].text
  if header = resp.http_response.headers['x-amzn-requestid']
    data[:request_id] = [header].flatten.first
  end
end