default_serializer

# File activesupport/lib/active_support/cache.rb, line 763
        def default_serializer
          case Cache.format_version
          when 7.0
            Cache::SerializerWithFallback[:marshal_7_0]
          when 7.1
            Cache::SerializerWithFallback[:marshal_7_1]
          else
            raise ArgumentError, "Unrecognized ActiveSupport::Cache.format_version: #{Cache.format_version.inspect}"
          end
        end