Survey: what new bit of syntax would you like in base #RStats?

What should the following bits of syntax do?

* ===
* ++ And --
* +=
* //
* ?
* {{ }}
* [[[ ]]]
* <<==
* (?: X)

#RStats syntax hypothetical

f <- function(year, x) {
# lunar phase for xth day of year
...
}

Three dots in a row is known as The Friday Operator.

R will call an LLM and get it to write the rest of the code.

@coolbutuseless I tried this with copilot, but it just gave me a wikipedia link 
@coolbutuseless IMHO function name should be so descriptive that make comments innecessary