Typescript @types/bpmn-js not provided in NPM

I’m developing an angular app and run successfully the angular-example bpmn-js-example-angular
But this example is not in strict mode… and if i activate the strict mode
Why aren’t the types of bpmn-js provided in npm?
(npm i --save-dev @types/bpmn-js)

thank you!

There are no types for bpmn-js currently. We are working on it.