code: public RESP deserializeResponse(final ByteBuf buf) {
  		Preconditions.checkNotNull(buf);
  		return responseDeserializer.deserializeMessage(buf);
  	}
docs: De-serializes the response sent to the
  {@link org.apache.flink.queryablestate.network.Client}.
  <pre>
  <b>The buffer is expected to be at the response position.</b>
  </pre>
  @param buf	The {@link ByteBuf} containing the serialized response.
  @return		The response.