Getting @router to work in latest version of crew ai

When you install the latest version of Crew AI the following @router directive does not work:

 @router(filter_leads, paths=["high", "medium", "low"])
  def count_leads(self, scores):
    if len(scores) > 10:
      return 'high'
    elif len(scores) > 5:
      return 'medium'
    else:
      return 'low'

The paths argument being passed in is not allowed.

This is due to CrewAI not maintaining backward compatilibility with their own product.