{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"self.tcx.erase_regions(self.tcx.instantiate_bound_regions_with_erased(trait_ref));"}]}
                self.tcx.erase_regions(self.tcx.instantiate_bound_regions_with_erased(trait_ref));
            let trait_ref =
            self.tcx.vtable_entries(trait_ref)