docs: def depends_on_helper(obj):
      """ Handles using .title if the given object is a troposphere resource.
  
      If the given object is a troposphere resource, use the `.title` attribute
      of that resource. If it's a string, just use the string. This should allow
      more pythonic use of DependsOn.
      """
      if isinstance(obj, AWSObject):
          return obj.title
      elif isinstance(obj, list):
          return list(map(depends_on_helper, obj))
      return obj