def utf8.step
import bend-kit-protobuf@0.2.0.0/protobuf.bend as Protobufimport Base
723def utf8.step(st: Utf8, b: U32) -> Result<&2, &2, Error, Utf8>:
724 Utf8{+need, lo, hi, cp, out} = st
725 utf8.step.idle(U32.is_zero(need), need, lo, hi, cp, b, out)