One in this forum is

if (squiffy.get("xyz") == 3) {
squiffy.story.go("link");
}

are there others, we can refer to and use.
A list of these that are already written, would be great.

Here are some. https://textadventures.co.uk/forum/squiffy/topic/qxyk0txqmuqf1vktghcrna/squiffy-templates