code: public synchronized MetaStore storeConfiguration(Configuration configuration) {
      LOGGER.trace("Store configuration {}", configuration);
      serializer.writeObject(configuration.members(), configurationBuffer.position(0)
        .writeByte(1)
        .writeLong(configuration.index())
        .writeLong(configuration.term())
        .writeLong(configuration.time()));
      configurationBuffer.flush();
      return this;
    }
docs: Stores the current cluster configuration.
  
  @param configuration The current cluster configuration.
  @return The metastore.