Babel : turn off import directives transpilation

I am trying to use the babel transpiler to use ES6 in a project, but i'm struggling with something quite unusual : I'm working with an enhanced ES5 js codebase that contains imports and export directives.

Here is an example :

import Widget from 'component:component-widget';

//ES5 code here

export default "something"

I would like to keep those imports, but transpile the rest of detected ES6 features.

I did not find a way to do it so far... :/

Do you know if something like that could be possible?

Thanks in advance!

via gwenp