{"ast_node_type":"other","tokens":[{"end":136,"kind":"keyword","start":0,"text":"Coroutine,"}]}
    Coroutine,               sym::coroutine,           coroutine_trait,            Target::Trait,          GenericRequirement::Exact(1);
    CoroutineState,          sym::coroutine_state,     coroutine_state,            Target::Enum,           GenericRequirement::None;
    CoroutineReturn,         sym::coroutine_return,    coroutine_return,           Target::AssocTy,        GenericRequirement::Exact(1);