code: private void configure(ModelMapper modelMapper) {
          if (configurers != null) {
              for (ModelMapperConfigurer modelMapperConfigurer : configurers) {
                  modelMapperConfigurer.configure(modelMapper);
              }
          }
      }
docs: Configures the model mapper instance be delegating toward registered {@link ModelMapperConfigurer} instances.
  
  @param modelMapper the model mapper