{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"ty::BoundVariableKind::Region(ty::BoundRegionKind::Anon),"}]}
        ty::BoundVariableKind::Region(ty::BoundRegionKind::Anon),
        ty::BoundVariableKind::Region(ty::BoundRegionKind::Anon),
        ty::BoundVariableKind::Region(ty::BoundRegionKind::ClosureEnv),