def start(name, id, payload)
      event = ActiveSupport::Notifications::Event.new(name, nil, nil, id, payload)
      event.start!
      parent = event_stack.last
      parent << event if parent

      event_stack.push event
    end
def start(name, id, payload)
      event = ActiveSupport::Notifications::Event.new(name, nil, nil, id, payload)
      event.start!
      parent = event_stack.last
      parent << event if parent

      event_stack.push event
    end
:nodoc: