old_contents: from pyramda.function.curry import curry
  from . import filter
  
  
  @curry
  def reject(p, xs):
      """
      Acts as a complement  of `filter`
  
      :param p: predicate
      :param xs: Iterable. A sequence, a container which supports iteration or an iterator
      :return: list
      """
      return list(set(xs) - set(filter(p, xs)))
  
new_contents: from pyramda.function.curry import curry
  from pyramda.logic import complement
  from . import filter
  
  
  @curry
  def reject(p, xs):
      """
      Acts as a complement  of `filter`
  
      :param p: predicate
      :param xs: Iterable. A sequence, a container which supports iteration or an iterator
      :return: list
      """
      return filter(complement(p), xs)
  
subject: Refactor to use pyramdas complement function. The initial set implementaion did not respect the order of elements and removed duplicates