docs: private KeyedBackendSerializationProxy<K> readMetaData(StreamStateHandle metaStateHandle) throws Exception {
  
  		FSDataInputStream inputStream = null;
  
  		try {
  			inputStream = metaStateHandle.openInputStream();
  			cancelStreamRegistry.registerCloseable(inputStream);
  			DataInputView in = new DataInputViewStreamWrapper(inputStream);
  			return readMetaData(in);
  		} finally {
  			if (cancelStreamRegistry.unregisterCloseable(inputStream)) {
  				inputStream.close();
  			}
  		}
  	}