Equivalent of Key.primaryKey in v5

[IvanPizhenko]

Note: I'm using Typescript.
Warning: I'm quite new to openpgp.js and may ask questions that are obvious for more experienced people.
I'm trying to port an application that uses openpgp.js v4 to v5.

In openpgp.js v4 there is member Key.primaryKey. There is no such one in v5. What is equivalent?

[IvanPizhenko]

From v4:

Object.defineProperty(Key.prototype, 'primaryKey', {
  get() {
    return this.keyPacket;
  },
  configurable: true,
  enumerable: true
});

So looks like just need to use keyPacket.