def word64.read_u
import bendonnect-rpc@0.1.0.0/src/pb.bend as Pbimport Base
import bend-kit-protobuf@0.1.0.0/protobuf.bend as Pb
207# Decimal digits -> Word64; None on empty input, a non-digit, or overflow past 2^64-1.
208def word64.read_u(+s: String) -> Maybe<&2, Pb.Word64>:
209 Bool.pick(Maybe<&2, Pb.Word64>, String.is_empty(s), None{}, read_u.go(s, Pb.Word64{0, 0}, False{}))