TypeScript Version: 2.2.2

elm.setAttribute('disabled', true) // should be allowed
elm.setAttribute('disabled', 1) // should be allowed

Expected behavior:

value
A DOMString containing the value to assign to the attribute. Any non-string value specified is converted automatically into a string.

https://developer.mozilla.org/en/docs/Web/API/Element/setAttribute

Actual behavior:

setAttribute(name: string, value: string): void