code: public Scanner scan(final Class<?> type) {
      // standard vs guice annotations
      if (type == Named.class || type == com.google.inject.name.Named.class) {
        serviceTypes.add(Named.class);
        serviceTypes.add(com.google.inject.name.Named.class);
      } else if (type == Singleton.class || type == com.google.inject.Singleton.class) {
        serviceTypes.add(Singleton.class);
        serviceTypes.add(com.google.inject.Singleton.class);
      } else {
        serviceTypes.add(type);
      }
      return this;
    }
docs: Add a scan criteria like an annotation, interface or class.
  
  @param type A scan criteria/type.
  @return This module.