def METHOD_NAME():
    kpc = {
        "username": "U",
        "password": "P",
        "base64_password": "cGFzc3dvcmQ=",
        "url": "L",
        "auth": AUTH_BASIC,
    }
    overrides = {conf.kernel_python_credentials.__name__: kpc}
    conf.override_all(overrides)
    conf.override(conf.livy_session_startup_timeout_seconds.__name__, 1)
    assert conf.d == {
        conf.kernel_python_credentials.__name__: kpc,
        conf.livy_session_startup_timeout_seconds.__name__: 1,
    }
    assert conf.livy_session_startup_timeout_seconds() == 1
    assert conf.base64_kernel_python_credentials() == {
        "username": "U",
        "password": "password",
        "url": "L",
        "auth": AUTH_BASIC,
    }