docs: public void init(InternalSerializationService serializationService, Data key, Object value, Extractors extractors) {
          if (key == null) {
              throw new IllegalArgumentException("keyData cannot be null");
          }
  
          this.serializationService = serializationService;
  
          this.key = key;
          this.value = value;
          this.extractors = extractors;
      }