code: def index(self, nurest_object):
          
          for index, obj in enumerate(self):
              if obj.equals(nurest_object):
                  return index
  
          raise ValueError("%s is  not in %s" % (nurest_object, self))
docs: Get index of the given item
              Args:
                  nurest_object (bambou.NURESTObject): the NURESTObject object to verify
  
              Returns:
                  Returns the position of the object.
  
              Raises:
                  Raise a ValueError exception if object is not present