new

# File activesupport/lib/active_support/callbacks.rb, line 96
      def initialize(chain, filter, kind, options, klass)
        @chain, @kind, @klass = chain, kind, klass
        deprecate_per_key_option(options)
        normalize_options!(options)

        @raw_filter, @options = filter, options
        @filter               = _compile_filter(filter)
        recompile_options!
      end