{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"(ty::UpvarCapture::ByUse,"}]}
        (ty::UpvarCapture::ByUse, ty::UpvarCapture::ByUse) => true,
        (ty::UpvarCapture::ByValue, ty::UpvarCapture::ByValue) => true,
        (ty::UpvarCapture::ByRef(ref_a), ty::UpvarCapture::ByRef(ref_b)) => ref_a == ref_b,