def mant.mk
import cswap-bend-cli@0.1.0.0/settings.bend as Settingsimport Base
141def mant.mk(neg: Bool, +i: String, +f: String) -> Maybe<&2, Dec>:
142 mant.pick(all_digits(i) && all_digits(f) && Bool.not(String.is_empty(i) && String.is_empty(f)), neg, i, f)