class Cucumber::Formatter::MessageBuilder

def on_test_run_started(*)
  @current_test_run_started_id = @test_run_started.id
  message = Cucumber::Messages::Envelope.new(
    test_run_started: Cucumber::Messages::TestRunStarted.new(
      timestamp: time_to_timestamp(Time.now),
      id: @current_test_run_started_id
    )
  )
  output_envelope(message)
end