Coalesce vs or_else

Hi Hail team,

I was just wondering if there is a preference for using coalesce vs or_else when there are only two expressions being compared?



@typecheck(a=expr_any, b=expr_any)
def or_else(a, b):
    a, b, success = unify_exprs(a, b)
    if not success:
        raise TypeError(f"'or_else' requires the 'a' and 'b' arguments to have the same type\n"
                        f"    a: type '{a.dtype}'\n"
                        f"    b: type '{b.dtype}'")
    return coalesce(a, b)

Perfect, thank you!