docs: public BinaryStore findBinaryStoreContainingKey( BinaryKey key ) {
          Iterator<Map.Entry<String, BinaryStore>> binaryStoreIterator = getNamedStoreIterator();
  
          while (binaryStoreIterator.hasNext()) {
              BinaryStore bs = binaryStoreIterator.next().getValue();
              if (bs.hasBinary(key)) {
                  return bs;
              }
          }
  
          return null;
      }