On Agular Material website (https://material.angularjs.org/#/) there is a lateral bar with a list. This list has 'accordion-like' feature, clicking on some items expands tyhe list with some subitems, for example clicking on DEMOS will appear a list of available demos.
I'd like to realize this into my webapp, but I'm not able to undertstand which Angular Material components must I use to realize this.
Is there any example?