[
    Expression {
        expression: AssignmentOperation(
            Assign {
                left: Variable(
                    SimpleVariable(
                        SimpleVariable {
                            span: (
                                4,
                                1,
                            ),
                            name: "a",
                        },
                    ),
                ),
                span: (
                    4,
                    4,
                ),
                right: LiteralInteger {
                    span: (
                        4,
                        6,
                    ),
                    value: "4",
                },
            },
        ),
        end: (
            4,
            7,
        ),
    },
    Expression {
        expression: AssignmentOperation(
            Assign {
                left: Variable(
                    SimpleVariable(
                        SimpleVariable {
                            span: (
                                6,
                                1,
                            ),
                            name: "b",
                        },
                    ),
                ),
                span: (
                    6,
                    4,
                ),
                right: Match {
                    condition: Variable(
                        SimpleVariable(
                            SimpleVariable {
                                span: (
                                    6,
                                    13,
                                ),
                                name: "a",
                            },
                        ),
                    ),
                    default: None,
                    arms: [],
                },
            },
        ),
        end: (
            7,
            2,
        ),
    },
]
