{"ast_node_type":"other","tokens":[{"end":136,"kind":"keyword","start":0,"text":"CoroutineReturn,"}]}
    CoroutineReturn,         sym::coroutine_return,    coroutine_return,           Target::AssocTy,        GenericRequirement::Exact(1);
    Coroutine,               sym::coroutine,           coroutine_trait,            Target::Trait,          GenericRequirement::Exact(1);
    CoroutineYield,          sym::coroutine_yield,     coroutine_yield,            Target::AssocTy,        GenericRequirement::Exact(1);