code: private void registerModulesForCustomFieldDef(ObjectMapper objectMapper) {
  		SimpleModule simpleModule = new SimpleModule("CustomFieldDefinition", new Version(1, 0, 0, null));
  		simpleModule.addDeserializer(CustomFieldDefinition.class, new CustomFieldDefinitionDeserializer());
  		objectMapper.registerModule(simpleModule);
  	}
docs: Method to add custom deserializer for CustomFieldDefinition
  
  @param objectMapper the Jackson object mapper