I would like to compute $f(x) := xi$, $g(y) := y - 1$ where $i$ is an imaginary number, $x$ is float and $y$ is uint, using array-api. However, I am not sure what is the best way to implement it. Following the type promotion rules

def f(x: xp.array) -> xp.array:
	return x * xp.array(1j, dtype=xp.complex64 if x.dtype == xp.float32 else xp.complex128)

def g(x: xp.array) -> xp.array:
	return x - xp.array(1, dtype=xp.int16 if x.dtype == xp.uint8 else xp.int32 if x.dtype == xp.uint16 else  xp.int64)

This seems too redundant. What is the proper way to do this?