def bytes.prefix.back
import bend-kit-websocket@0.4.0.0/websocket.bend as Websocketimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
529def bytes.prefix.back(+pos: U32, +start: U32, +end: U32, r: Bytes.Bytes & List<&2, U32>) -> Bytes.Cursor & List<&2, U32>:
530 (b, t) = r
531 (Bytes.Cursor{b, pos, start, end}, t)