{"ast_node_type":"other","tokens":[{"end":136,"kind":"keyword","start":0,"text":"Future,"}]}
    Future,                  sym::future_trait,        future_trait,               Target::Trait,          GenericRequirement::Exact(0);
    CoroutineState,          sym::coroutine_state,     coroutine_state,            Target::Enum,           GenericRequirement::None;