Incorrect typing for hasProperty assertion

[wuron]

hasProperty assertion is defined as hasProperty(name: string, value: string | RegExp, message?: string) but properties, unlike attributes, are not limited to just strings.

I’d like to use hasProperty to assert for checked property on checkbox input in typescript with the following assertion:

assert.dom('input').hasProperty('checked', true);

but this results in typescript error.

Asserting for stringified value ("true") is incorrect and results in failed test.