[
    UniqueArgument(
        UniqueArgument {
            name: "arg",
            src: "directive @example(arg: Boolean, arg: Boolean) on FIELD\n",
            original_definition: SourceSpan {
                offset: SourceOffset(
                    19,
                ),
                length: SourceOffset(
                    14,
                ),
            },
            redefined_definition: SourceSpan {
                offset: SourceOffset(
                    33,
                ),
                length: SourceOffset(
                    12,
                ),
            },
            help: Some(
                "`arg` argument must only be defined once.",
            ),
        },
    ),
]
