`image:flip()` is not documented under Image

[Arecher]

The API overview on the website doesn't mention the Image:flip() function, nor the expected arguments on the Image page. https://www.aseprite.org/api/image#image

The only reason I found out it existed is from the patchnotes for Aseprite v1.3-rc4. FlipType is documented, although it seems like a floating page, that isn't linked from anywhere unless you search for it.

At first I thought it might not be documented yet due to being experimental still, but as far as I know 1.3 is out!

I haven't checked whether the other recently added functions are documented on the API website