# File lib/puppet/parser/scope.rb, line 435
435:   def unset_ephemeral_var(level=:all)
436:     if level == :all
437:       @ephemeral = [ Ephemeral.new ]
438:     else
439:       (@ephemeral.size - level).times do
440:         @ephemeral.pop
441:       end
442:     end
443:   end