def tu_cls
import bend-collections-laws-math@1.0.0.0/src/math/f64.bend as F64import Base
import bend-collections-laws-math@1.0.0.0/src/math/num.bend as N
import bend-collections-laws-math@1.0.0.0/src/math/u64.bend as W
777def tu_cls(+x: F64, top: Bool) -> Result<&2, &2, N.NumError, W.U64>:
778 match top:
779 case True{}:
780 tu_top(nz(frac(x)))
781 case False{}:
782 tu_fin(x, Nat.is_le(3000n, dexp(x)))