class Cucumber::Formatter::Json

def on_test_step_finished(event)
  test_step, result = *event.attributes
  result = result.with_filtered_backtrace(Cucumber::Formatter::BacktraceFilter)
  return if internal_hook?(test_step)
  add_match_and_result(test_step, result)
  @any_step_failed = true if result.failed?
end