code: def take_first(count):
      
      def _take_first(iterable):
          return islice(iterable, count)
      return pipe | set_name('take_first(%s)' % count, _take_first)
docs: Assumes an iterable on the input, returns an iterable with first `count`
      items from the input (or possibly less, if there isn't that many).
  
      >>> range(9000) > where(X % 100 == 0) | take_first(5) | tuple
      (0, 100, 200, 300, 400)