The next line is an included template. Look at templates/my-favorite-animal.st

*********** My least favorite animal is Bambi.

*********** (set in another template, leastFavoriteAnimal.st)

*********** Notice that this template file uses CamelCase rather than dashes to separate words. Otherwise there's an error with included templates. So, in general: avoid template file names with dashes or underscores, and just use CamelCase for templates. Numbers are also not allowed.
Try uncommenting the next line and see what you get:

If I forget to set an attribute (favoriteMammal), it just doesn't display:

This is what happens when an include fails: No Template Found for: nonexistingTemplate

The next bit includes a template from a template that is already an included template.

If I set the same attribute several times, it just shows up repeated. I think this is reasonable, because it gives you feedback that there's probably a bug in your program:

Favorite plant: SugarcaneFicusWheat

Favorite plant Two:

You can comment out parts of a template:

You can display lists: My favorite animal is a: (set with setAttribute)

*********** My least favorite animal is .

*********** (set in another template, leastFavoriteAnimal.st)

*********** Notice that this template file uses CamelCase rather than dashes to separate words. Otherwise there's an error with included templates. So, in general: avoid template file names with dashes or underscores, and just use CamelCase for templates. Numbers are also not allowed.
Try uncommenting the next line and see what you get:

If I forget to set an attribute (favoriteMammal), it just doesn't display:

This is what happens when an include fails: No Template Found for: nonexistingTemplate

The next bit includes a template from a template that is already an included template.

If I set the same attribute several times, it just shows up repeated. I think this is reasonable, because it gives you feedback that there's probably a bug in your program:

Favorite plant:

Favorite plant Two:

You can comment out parts of a template:

You can display lists: zinc talc

The next line shows another strategy for including templates, generating them using let bindings in haskell, rather than using parenthesis to make StringTemplate do includes. Note that $ fp2 $ would be an illegal template var name, so we use fpTwo

If I set the same attribute several times, it just shows up repeated. I think this is reasonable, because it gives you feedback that there's probably a bug in your program:

Favorite plant:

Favorite plant Two: Venus Fly Trap