docs: private void registerLinkedInJsonModule() {
  		List<HttpMessageConverter<?>> converters = getRestTemplate().getMessageConverters();
  		for (HttpMessageConverter<?> converter : converters) {
  			if(converter instanceof MappingJackson2HttpMessageConverter) {
  				MappingJackson2HttpMessageConverter jsonConverter = (MappingJackson2HttpMessageConverter) converter;
  				objectMapper = new ObjectMapper();				
  				objectMapper.registerModule(new LinkedInModule());
  				objectMapper.configure(SerializationFeature.WRITE_ENUMS_USING_TO_STRING, true);
  				objectMapper.configure(Feature.ALLOW_NUMERIC_LEADING_ZEROS, true);
  				objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
  				jsonConverter.setObjectMapper(objectMapper);
  			}
  		}
  	}