Query(
    Sequence(
        SequenceNode {
            nodes: [
                Fetch(
                    FetchNode {
                        service: "products",
                        variables: VariablesRef {
                            variables: {},
                        },
                        query: FetchQuery {
                            entity_type: None,
                            operation_type: Query,
                            variable_definitions: VariableDefinitionsRef {
                                variables: [],
                            },
                            selection_set: SelectionRefSet(
                                [
                                    FieldRef(
                                        FieldRef {
                                            field: Field {
                                                alias: None,
                                                name: Positioned {
                                                    pos: Pos(7:3),
                                                    node: Name(
                                                        "topProducts",
                                                    ),
                                                },
                                                arguments: [
                                                    (
                                                        Positioned {
                                                            pos: Pos(7:15),
                                                            node: Name(
                                                                "first",
                                                            ),
                                                        },
                                                        Positioned {
                                                            pos: Pos(7:22),
                                                            node: Number(
                                                                Number(
                                                                    1,
                                                                ),
                                                            ),
                                                        },
                                                    ),
                                                ],
                                                directives: [],
                                                selection_set: Positioned {
                                                    pos: Pos(7:25),
                                                    node: SelectionSet {
                                                        items: [
                                                            Positioned {
                                                                pos: Pos(8:5),
                                                                node: Field(
                                                                    Positioned {
                                                                        pos: Pos(8:5),
                                                                        node: Field {
                                                                            alias: None,
                                                                            name: Positioned {
                                                                                pos: Pos(8:5),
                                                                                node: Name(
                                                                                    "upc",
                                                                                ),
                                                                            },
                                                                            arguments: [],
                                                                            directives: [],
                                                                            selection_set: Positioned {
                                                                                pos: Pos(0:0),
                                                                                node: SelectionSet {
                                                                                    items: [],
                                                                                },
                                                                            },
                                                                        },
                                                                    },
                                                                ),
                                                            },
                                                            Positioned {
                                                                pos: Pos(9:5),
                                                                node: Field(
                                                                    Positioned {
                                                                        pos: Pos(9:5),
                                                                        node: Field {
                                                                            alias: None,
                                                                            name: Positioned {
                                                                                pos: Pos(9:5),
                                                                                node: Name(
                                                                                    "inStock",
                                                                                ),
                                                                            },
                                                                            arguments: [],
                                                                            directives: [],
                                                                            selection_set: Positioned {
                                                                                pos: Pos(0:0),
                                                                                node: SelectionSet {
                                                                                    items: [],
                                                                                },
                                                                            },
                                                                        },
                                                                    },
                                                                ),
                                                            },
                                                            Positioned {
                                                                pos: Pos(10:5),
                                                                node: Field(
                                                                    Positioned {
                                                                        pos: Pos(10:5),
                                                                        node: Field {
                                                                            alias: None,
                                                                            name: Positioned {
                                                                                pos: Pos(10:5),
                                                                                node: Name(
                                                                                    "shippingEstimate",
                                                                                ),
                                                                            },
                                                                            arguments: [],
                                                                            directives: [],
                                                                            selection_set: Positioned {
                                                                                pos: Pos(0:0),
                                                                                node: SelectionSet {
                                                                                    items: [],
                                                                                },
                                                                            },
                                                                        },
                                                                    },
                                                                ),
                                                            },
                                                        ],
                                                    },
                                                },
                                            },
                                            selection_set: SelectionRefSet(
                                                [
                                                    FieldRef(
                                                        FieldRef {
                                                            field: Field {
                                                                alias: None,
                                                                name: Positioned {
                                                                    pos: Pos(8:5),
                                                                    node: Name(
                                                                        "upc",
                                                                    ),
                                                                },
                                                                arguments: [],
                                                                directives: [],
                                                                selection_set: Positioned {
                                                                    pos: Pos(0:0),
                                                                    node: SelectionSet {
                                                                        items: [],
                                                                    },
                                                                },
                                                            },
                                                            selection_set: SelectionRefSet(
                                                                [],
                                                            ),
                                                        },
                                                    ),
                                                    RequiredRef(
                                                        RequiredRef {
                                                            prefix: 1,
                                                            fields: KeyFields(
                                                                {
                                                                    Name(
                                                                        "upc",
                                                                    ): KeyFields(
                                                                        {},
                                                                    ),
                                                                },
                                                            ),
                                                            requires: None,
                                                        },
                                                    ),
                                                ],
                                            ),
                                        },
                                    ),
                                ],
                            ),
                        },
                    },
                ),
                Flatten(
                    FlattenNode {
                        path: [topProducts],
                        prefix: 1,
                        service: "inventory",
                        variables: VariablesRef {
                            variables: {},
                        },
                        query: FetchQuery {
                            entity_type: Some(
                                "Product",
                            ),
                            operation_type: Subscription,
                            variable_definitions: VariableDefinitionsRef {
                                variables: [],
                            },
                            selection_set: SelectionRefSet(
                                [
                                    FieldRef(
                                        FieldRef {
                                            field: Field {
                                                alias: None,
                                                name: Positioned {
                                                    pos: Pos(9:5),
                                                    node: Name(
                                                        "inStock",
                                                    ),
                                                },
                                                arguments: [],
                                                directives: [],
                                                selection_set: Positioned {
                                                    pos: Pos(0:0),
                                                    node: SelectionSet {
                                                        items: [],
                                                    },
                                                },
                                            },
                                            selection_set: SelectionRefSet(
                                                [],
                                            ),
                                        },
                                    ),
                                    FieldRef(
                                        FieldRef {
                                            field: Field {
                                                alias: None,
                                                name: Positioned {
                                                    pos: Pos(10:5),
                                                    node: Name(
                                                        "shippingEstimate",
                                                    ),
                                                },
                                                arguments: [],
                                                directives: [],
                                                selection_set: Positioned {
                                                    pos: Pos(0:0),
                                                    node: SelectionSet {
                                                        items: [],
                                                    },
                                                },
                                            },
                                            selection_set: SelectionRefSet(
                                                [],
                                            ),
                                        },
                                    ),
                                ],
                            ),
                        },
                    },
                ),
            ],
        },
    ),
)