{"ast_node_type":"other","tokens":[{"end":136,"kind":"keyword","start":0,"text":"Future,"}]}
    Future,                  sym::future_trait,        future_trait,               Target::Trait,          GenericRequirement::Exact(0);
    FusedIterator,           sym::fused_iterator,      fused_iterator_trait,       Target::Trait,          GenericRequirement::Exact(0);
    FutureOutput,            sym::future_output,       future_output,              Target::AssocTy,        GenericRequirement::Exact(0);