def test_extension(runner: CliRunner):
    result = runner.invoke(cli, ['-m', '_pickle'])
    assert (result.exit_code == 0)
    assert (result.output == 'All OK!\nScanned 1 module(s), 5 class(es).\n')
def test_extension(runner: CliRunner):
    result = runner.invoke(cli, ['-m', '_pickle'])
    assert (result.exit_code == 0)
    assert (result.output == 'All OK!\nScanned 1 module(s), 5 class(es).\n')