Is angular2/materialize a subset of the materializecss?

[halukkaramete]

I wanted to implement the expandable component featured at http://materializecss.com/collapsible.html . i'm not very sure but from the related demo page ( https://infomedialtd.github.io/angular2-materialize/#/Collapsible), I have a feeling that angular2-materialize is not the same as materializecss, yet. Please confirm if this understanding is correct.
Or is it that the demo just opted out to feature it?

Also, where does the initialize code go in? Obviously, we cannot do things like

<script> $(document).ready(function(){ $('.collapsible').collapsible(); }); </script>

in the component.html as angular strips all script tags for security reasons.
When I place the above code in ngOnInit, I get the following error: collapsible is not a function