def mutate(self) -> 'BeamNGMember':
    RoadMutator(self, lower_bound=(- int(self.problem.config.MUTATION_EXTENT)), upper_bound=int(self.problem.config.MUTATION_EXTENT)).mutate()
    self.distance_to_boundary = None
    return self
def mutate(self) -> 'BeamNGMember':
    RoadMutator(self, lower_bound=(- int(self.problem.config.MUTATION_EXTENT)), upper_bound=int(self.problem.config.MUTATION_EXTENT)).mutate()
    self.distance_to_boundary = None
    return self