[
    Expression {
        expression: NullsafeMethodCall {
            target: Variable(
                SimpleVariable(
                    SimpleVariable {
                        span: (
                            1,
                            7,
                        ),
                        name: "a",
                    },
                ),
            ),
            span: (
                1,
                9,
            ),
            method: Identifier(
                SimpleIdentifier(
                    SimpleIdentifier {
                        span: (
                            1,
                            12,
                        ),
                        value: "b",
                    },
                ),
            ),
            arguments: ArgumentList {
                start: (
                    1,
                    13,
                ),
                arguments: [],
                end: (
                    1,
                    14,
                ),
            },
        },
        end: (
            1,
            15,
        ),
    },
]
