apply

# File activesupport/lib/active_support/callbacks.rb, line 400
      def apply(callback_sequence)
        user_conditions = conditions_lambdas
        user_callback = make_lambda @filter

        case kind
        when :before
          Filters::Before.build(callback_sequence, user_callback, user_conditions, chain_config, @filter)
        when :after
          Filters::After.build(callback_sequence, user_callback, user_conditions, chain_config)
        when :around
          Filters::Around.build(callback_sequence, user_callback, user_conditions, chain_config)
        end
      end