docs: public final boolean prepend(String key, final Object value, final long timeout)
        throws TimeoutException, InterruptedException, MemcachedException {
      key = this.preProcessKey(key);
      byte[] keyBytes = this.checkStoreArguments(key, 0, value);
      return this.sendStoreCommand(
          this.commandFactory.createPrependCommand(key, keyBytes, value, false, this.transcoder),
          timeout);
    }