Overriding interface property type defined in Typescript d.ts file

Is there a way to change the type of interface property defined in a *.d.ts in typescript?

for example:
An interface in x.d.ts is defined as

interface A {
  property: number;
}

I want to change it in the typescript files that I write to

interface A {
  property: Object;
}

or even this would work

interface B extends A {
  property: Object;
}

Will this approach work? It didn’t work when I tried on my system. Just want to confirm if it’s even possible?