Callable missing "call" in example code?

3.5.1

apologies if this has already been reported but i couldn't find it in a couple of searches
i feel that the code
`var plus_one = map(my_array, add1)`
is missing ".call", i think it should be
`var plus_one = map.call(my_array, add1)`

but again, i could be wrong. i am trying very hard to absorb the material, going through it for the first time

https://docs.godotengine.org/en/latest/tutorials/scripting/gdscript/gdscript_basics.html