class Seahorse::Client::Http::AsyncResponse

def signal_done(options = {})
  # H2 only has header and body
  # ':status' header will be sent back
  if options.keys.sort == [:body, :headers]
    signal_headers(options[:headers])
    signal_data(options[:body])
    signal_done
  elsif options.empty?
    @body.rewind if @body.respond_to?(:rewind)
    @done = true
    emit(:done)
  else
    msg = "options must be empty or must contain :headers and :body"
    raise ArgumentError, msg
  end
end