transform_symbol_keys

# File activejob/lib/active_job/arguments.rb, line 188
      def transform_symbol_keys(hash, symbol_keys)
        # NOTE: HashWithIndifferentAccess#transform_keys always
        # returns stringified keys with indifferent access
        # so we call #to_h here to ensure keys are symbolized.
        hash.to_h.transform_keys do |key|
          if symbol_keys.include?(key)
            key.to_sym
          else
            key
          end
        end
      end