def pending.of
import bend-kit-postgres@0.3.0.0/codec.bend as Codecimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
702def pending.of(+pos: U32, r: Bytes.Bytes & U32) -> Reader & U32:
703 (b, +len) = r
704 (Reader{b, pos}, (len - pos : U32))