How can I get the supported type of native function?

hi, I want to get the supported type of native function which is defined in native_function.yaml, such as, we know add op in gpu support Double, Float, Half…, but I found all dtype defined in native functions is tensor/scalar, beacuse they are unboxed function. I want to add some log to get the supported dtype information, but I dont know where to add. Thanks very much!