Define a web component inside another web component without polluting global namespace

Question

Suppose I want to use a web component that use 10 web component internally, and if the component define it globally, Internals will pollute my global component namespace and I can't use their name for another components.

Is there any way to use a web component inside another web component without defining it via customElements.define()?

Answer 1

There is some discussion around creating scoped custom element registries but nothing has a spec or been implemented yet.