VueJS - Remove html inside slot if it's not my component

Question

I have component-a and component-b, the default slot of component-a must render only component-b and other elements with different tags must be removed

<component-a> 
    
    <component-b></component-b> // render
    <component-b></component-b> // render
    
    <div></div> // remove
    <input /> //remove
    
</component-a>

What should I do?!