What Typescript type is a change event? (In Angular)

I'm trying to figure out what Typescript type a change event is used in an Angular project.

The code is something simple like this:

file-upload.component.html

<input type="file" (change)="onChange($event)"/>


file-upload.ts

public onChange(event: Event): void {
if (event.target.files && event.target.files.length) {
const [file] = event.target.files;
console.log(file);
}
}


Typing the event as Event gives me the following Typescript linting error:

Property 'files' does not exist on type 'EventTarget'


What should I be typing this if not Event?

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