code: public static void use(final HttpConfig config, final Iterable<String> contentTypes) {
          config.getRequest().encoder(contentTypes, Jackson::encode);
          config.getResponse().parser(contentTypes, Jackson::parse);
      }
docs: Configures the client to use the Jackson encoder/decoder for JSON handling, with the specified JSON content type.
  
  [source,groovy]
  ----
  def result = http.get {
  Jackson.use(delegate)
  }
  ----
  
  @param config the configuration
  @param contentTypes the content types to be configured