I have a library with several components made up of smaller components. Those smaller components should never be used on their own. I want to make my library available to another team but I don’t want the sub-components available. Here is an example: 

I have a chart legend that I use with three different chart components. I want the user to be able to add a chart component to the page but I don’t want them to be able to add just a legend component to the page. I want the legend to be a component for me so that when I update the look, I don’t have to go update all 3 chart components. If I leave the legend component accessible, I know some non-designer will try to misuse it and stick it on a page as some kind of fancy list or something.