def fit64
import bend-collections-laws-crypto@1.0.0.0/proofs/math/typed/w64sh.bend as W64shimport Base
import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-crypto@1.0.0.0/proofs/math/typed/width.bend as WW
135def fit64(+l: U32, +h: U32) -> {C.fits(64n, val(l, h)) == True{} : Bool}:
136 WW.limbs_fit(32n, 32n, v(l), v(h), vb(l), vb(h))