[
    (
        "x",
        Alternatives {
            total_nodes: 3,
            values: [
                Constant(
                    Num(
                        ConstantNumber(
                            1.0,
                        ),
                    ),
                ),
                Unknown {
                    original_value: None,
                    reason: "updated with update expression",
                    has_side_effects: true,
                },
            ],
            logical_property: None,
        },
    ),
    (
        "y",
        Unknown {
            original_value: Some(
                Constant(
                    Num(
                        ConstantNumber(
                            2.0,
                        ),
                    ),
                ),
            ),
            reason: "sequence with side effects",
            has_side_effects: true,
        },
    ),
]