denormalizer_block do |input, type, context, &block|
            input = { content: input } if input.is_a?(String)
            raise "Hash expected, got #{input.class}" unless input.is_a?(Hash)
            { id: -1, owner: -3 }.each do |key, index|
              if [key, key.to_s].none? { |v| input.key?(v) }