docs: private void handleTelnetRpc(final Channel chan, final String[] command) {
      TelnetRpc rpc = rpc_manager.lookupTelnetRpc(command[0]);
      if (rpc == null) {
        rpc = unknown_cmd;
      }
      telnet_rpcs_received.incrementAndGet();
      rpc.execute(tsdb, chan, command);
    }