{"ast_node_type":"impl","tokens":[{"end":77,"kind":"keyword","start":0,"text":"args_visitors:"}]}
        args_visitors: impl Iterator<Item = &'a hir::GenericArg<'a>> + Clone,
        segments: impl Iterator<Item = &'a hir::PathSegment<'a>> + Clone,
        err_extend: GenericsArgsErrExtend<'a>,