{"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"hir::GenericParam::ConstParam(it)"}]}
                        hir::GenericParam::ConstParam(it) => it.merge(),
                        hir::GenericParam::TypeParam(it) => it.merge(),
                        hir::GenericParam::LifetimeParam(_) => return None,