Question Assign SSL certificate to subdomain using API & node.js (absolute noob here)

[queensoft]

Absolute beginner here, on all things Plesk and node.js and pretty much everything discussed here.
I'm testing this script here (example.js): plesk/api-examples
Trying several Plesk API commands.
For instance, I managed to successfully create a sub-subdomain ( Managing Subdomains ).
Domain: xyz.com
Subdomain: labs.xyz.com
Sub-subdomain, created using API, SSL enabled: s1.labs.xyz.com
I have a SSL certificate in the certificate repository, valid for all *.xyz.com
I can get the certificate name using this: Retrieving List of Certificates
I can manually assign the ceritifcate: Websites & Domains > select s1.labs.xyz.com > Hosting & DNS > Security > select certificate from dropdown list > Apply.
How do I do this using API, using nodejs? Is it even possible?
Thank you.