apollo-client-config-data/src/main/java/com/ctrip/framework/apollo/config/data/injector/ApolloConfigDataInjectorCustomizer.java/ApolloConfigDataInjectorCustomizer/register
class ApolloConfigDataInjectorCustomizer:  public static <T> void register(Class<T> type, Supplier<T> instanceSupplier) {
    INSTANCE_SUPPLIERS.put(type, instanceSupplier);
  }