{"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"(ty::UpvarCapture::ByValue,"}]}
        (ty::UpvarCapture::ByValue, _)
        (ty::UpvarCapture::ByRef(ref_a), ty::UpvarCapture::ByRef(ref_b)) => ref_a == ref_b,
        | (ty::UpvarCapture::ByUse, _)