Default amp.hbs file

The theme I’m using does not have a custom amp page. But it’s my understanding that ghost fallback to a default amp.hbs template. Where can I find this template?

Where did you find the documentation of a default AMP template?

Here’s the default template: Ghost/amp.hbs at c667620d8f2e32c96fe376ad0f3dabc79488532a · TryGhost/Ghost · GitHub