module is an online platform for the community to easily create, edit, and share their CraftML models. Each model file on is a reusable module and has a unique identifier for importing. For example, the model file at is a heart, created by calebhsu. The module id is 4yS59. Knowing this, we can import this model and pick a meaningful tag name, for instance, heart, like the code below.

<!-- create a heart using the module @ 4yS59 -->
<heart module="4yS59"/>