code: @Override
      public Object findSagaInstanceKey(final Class<? extends Saga> sagaClazz, final LookupContext context) {
          Object keyValue = null;
  
          KeyReader reader = tryGetKeyReader(sagaClazz, context.message());
          if (reader != null) {
              keyValue = reader.readKey(context.message(), context);
          }
  
          return keyValue;
      }
docs: {@inheritDoc}