{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"GenericParent::Impl(impl_)"}]}
            GenericParent::Impl(impl_) => impl_.generic_param_list(),
            GenericParent::Fn(fn_) => fn_.generic_param_list(),
            GenericParent::Trait(trait_) => trait_.generic_param_list(),