def codings.has
import bend-kit-http@0.38.2.0/http.bend as Httpimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
4264def codings.has(~eff: U32 -> Bytes.Bytes -> IO(Result<&1, &1, U32 & String, Bytes.Bytes>), b: Bytes.Bytes) -> IO(Bool):
4265 do IO<Bool>:
4266 r : Result<&1, &1, U32 & String, Bytes.Bytes> <- eff(0, b)
4267 return codings.ok(r)