serialize_argument

# File activejob/lib/active_job/arguments.rb, line 99
      def serialize_argument(argument)
        case argument
        when *PERMITTED_TYPES
          argument
        when GlobalID::Identification
          convert_to_global_id_hash(argument)
        when Array
          argument.map { |arg| serialize_argument(arg) }
        when ActiveSupport::HashWithIndifferentAccess
          serialize_indifferent_hash(argument)
        when Hash
          symbol_keys = argument.each_key.grep(Symbol).map!(&:to_s)
          aj_hash_key = if Hash.ruby2_keywords_hash?(argument)
            RUBY2_KEYWORDS_KEY
          else
            SYMBOL_KEYS_KEY
          end
          result = serialize_hash(argument)
          result[aj_hash_key] = symbol_keys
          result
        when -> (arg) { arg.respond_to?(:permitted?) }
          serialize_indifferent_hash(argument.to_h)
        else
          Serializers.serialize(argument)
        end
      end