{"ast_node_type":"struct","tokens":[{"end":43,"kind":"keyword","start":0,"text":"struct"}]}
    struct LateBoundRegionsDetector<'tcx> {
fn has_late_bound_regions<'tcx>(tcx: TyCtxt<'tcx>, node: Node<'tcx>) -> Option<Span> {
        tcx: TyCtxt<'tcx>,