# File lib/puppet/ssl/certificate_authority.rb, line 52
52:     def apply(method, options)
53:         unless options[:to]
54:             raise ArgumentError, "You must specify the hosts to apply to; valid values are an array or the symbol :all"
55:         end
56:         applier = Interface.new(method, options[:to])
57: 
58:         applier.apply(self)
59:     end