[
    ApolloDiagnostic {
        cache: {
            0: "built_in_types.graphql",
            43: "0043_undefined_union_member.graphql",
        },
        location: DiagnosticLocation {
            file_id: FileId {
                id: 43,
            },
            offset: 132,
            length: 3,
        },
        labels: [
            Label {
                location: DiagnosticLocation {
                    file_id: FileId {
                        id: 43,
                    },
                    offset: 132,
                    length: 3,
                },
                text: "not found in this scope",
            },
        ],
        help: None,
        data: UndefinedDefinition {
            name: "Cat",
        },
    },
]
