How to make django template tag from html document?

Question

Django

Good afternoon!!
In one of the projects that was sent to me, the following functionality was used:
there were two html documents, for example, the first document:

tag.html
<h1>15</h1>

The second document is supposed to use the first one as a django templating tag:

<h2> Всего в мире за последний год появилось {% tag %} новых профессий.</h2>

tell me how it's done, or what is it called? Thank you!

Answer 1

Done through
{% include 'tag.html' %}

Answer 2

https://docs.djangoproject.com/en/3.2/howto/custom...