def load_installed_version(self):
        installed_packages = get_installed_pypackages()
        if self.package in installed_packages:
            self.version = "=={}".format(
                installed_packages[self.package].version)
def sample_fn(x):
    return utils.optimise_and_sample(x, module=model,
                                     data=None, is_training=False)[0]