libmediasoupclient signaling

Hi all,
In the documentation about libmediasoupclient API I can see the following line in a code example:

mySignaling.send("transport-connect", body);

My questions are the following:

  1. Does libmediasoupclient provides any API for signaling or it should be implemented on my own?
  2. If I try to connect the demo server ( or from mediasoup-demo repo) via my own web socket (e.g. using websosketpp) I encounter TLS error. Which SSL certificates should I use?

Thanks in advance.