def METHOD_NAME(self):
    mean = self.create_mean()
    self.assertAllClose(mean.constant, torch.zeros(mean.constant.shape))
    constraint = GreaterThan(1.5)
    mean = self.create_mean(constraint=constraint)
    self.assertTrue(torch.all(mean.constant >= 1.5))
    mean.constant = torch.full(self.__class__.batch_shape or torch.Size([]), fill_value=1.65)
    self.assertAllClose(mean.constant, torch.tensor(1.65).expand(mean.constant.shape))