def deltaq
import unified-nsga-iii@0.2.2.0/polynomial_mutation.bend as PolynomialMutationimport Base
63def deltaq(+eta: F32, +mut_pow: F32, +delta1: F32, +delta2: F32, +rand: F32) -> F32:
64 deltaq.pick(eta, mut_pow, delta1, delta2, rand, F32.is_lt(rand, 0.5))