docs: def lastindex(*args, **kwargs):
      """Search a list backwards for an exact element,
      or element satisfying a predicate.
  
      Usage::
  
          lastindex(element, list_)
          lastindex(of=element, in_=list_)
          lastindex(where=predicate, in_=list_)
  
      :param element, of: Element to search for (by equality comparison)
      :param where: Predicate defining an element to search for.
                    This should be a callable taking a single argument
                    and returning a boolean result.
      :param list_, in_: List to search in
  
      :return: Index of the last matching element, or -1 if none was found
  
      .. versionadded:: 0.0.3
      """
      _, idx = _index(*args, start=sys.maxsize, step=-1, **kwargs)
      return idx