{"ast_node_type":"other","tokens":[{"end":111,"kind":"keyword","start":0,"text":"///"}]}
    ///   uncommenting the tuple still leaves the macro call working (see `tests::in_macro_call::empty_macro`).
    ///   When a macro accepts the tuple as argument, as well as no arguments at all,
    ///   But this is an unlikely case. Usually the resulting macro call will become erroneous.