What does `some_function` construction mean in Elm?

Question

I was looking into the elm-form package docs and found here this piece of code:

field "myfield" (int `andThen` minInt 10)

What do these quotes mean? Is it yet another way to apply a function?

Answer 1

It was a way to use any function as an infix, as in 3 + 5.

BUT: It's been removed in elm 0.18: migration notes.