@classmethod
def teardown(cls):
    os.environ['MAMBA_ROOT_PREFIX'] = TestInstall.root_prefix
    os.environ['CONDA_PREFIX'] = TestInstall.prefix
@classmethod
def teardown(cls):
    os.environ['MAMBA_ROOT_PREFIX'] = TestInstall.root_prefix
    os.environ['CONDA_PREFIX'] = TestInstall.prefix