[
    Expression {
        expression: AssignmentOperation(
            Assign {
                left: Variable(
                    SimpleVariable(
                        SimpleVariable {
                            span: (
                                3,
                                1,
                            ),
                            name: "e",
                        },
                    ),
                ),
                span: (
                    3,
                    4,
                ),
                right: FunctionCall {
                    target: Parenthesized {
                        start: (
                            3,
                            6,
                        ),
                        expr: ArrowFunction(
                            ArrowFunction {
                                start: (
                                    3,
                                    7,
                                ),
                                end: (
                                    3,
                                    33,
                                ),
                                attributes: [],
                                parameters: FunctionParameterList {
                                    start: (
                                        3,
                                        10,
                                    ),
                                    end: (
                                        3,
                                        12,
                                    ),
                                    members: [],
                                },
                                return_type: Some(
                                    Identifier(
                                        SimpleIdentifier {
                                            span: (
                                                3,
                                                14,
                                            ),
                                            value: "\Generator",
                                        },
                                    ),
                                ),
                                by_ref: false,
                                body: Yield {
                                    key: None,
                                    value: None,
                                },
                                static: false,
                            },
                        ),
                        end: (
                            3,
                            33,
                        ),
                    },
                    arguments: ArgumentList {
                        start: (
                            3,
                            34,
                        ),
                        arguments: [],
                        end: (
                            3,
                            35,
                        ),
                    },
                },
            },
        ),
        end: (
            3,
            36,
        ),
    },
]
