# File lib/action_mailer/vendor/tmail/header.rb, line 556
556:     def keys
557:       ensure_parsed
558:       @keys
559:     end

     # File lib/action_mailer/vendor/tmail/header.rb, line 575
575:     def do_accept( strategy )
576:       first = true
577:       @keys.each do |i|
578:         if first
579:           first = false
580:         else
581:           strategy.meta ','
582:         end
583:         strategy.meta i
584:       end
585:     end

     # File lib/action_mailer/vendor/tmail/header.rb, line 563
563:     def init
564:       @keys = []
565:     end

     # File lib/action_mailer/vendor/tmail/header.rb, line 571
571:     def isempty?
572:       @keys.empty?
573:     end

     # File lib/action_mailer/vendor/tmail/header.rb, line 567
567:     def set( a )
568:       @keys = a
569:     end