new

# File activerecord/lib/active_record/store.rb, line 261
        def initialize(attr_name, coder_or_class_name)
          @coder =
            if coder_or_class_name.respond_to?(:load) && coder_or_class_name.respond_to?(:dump)
              coder_or_class_name
            else
              ActiveRecord::Coders::YAMLColumn.new(attr_name, coder_or_class_name || Object)
            end
        end