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bytes.bend source

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import Basetype Bytes.Error is Data:  InvalidByte{index: Nat, value: U32}type Bytes is Data:  Bytes{data: List<&2, U32>}def Bytes.ok_byte(x: U32) -> Bool:  U32.is_le(x, 255)def Bytes.from_u32_list.go(  xs: List<&2, U32>, acc: List<&2, U32>, i: Nat, ok: Bool, +h: U32) -> Result<&2, &2, Bytes.Error, Bytes>:  match xs ok:    case _ False{}:      Fail{InvalidByte{i, h}}    case Nil{} True{}:      Done{Bytes{List.reverse(&2, U32, Con{h, acc})}}    case Con{+hh, t} True{}:      Bytes.from_u32_list.go(t, Con{h, acc}, 1n+i, Bytes.ok_byte(hh), hh)def Bytes.from_u32_list.start(  xs: List<&2, U32>) -> Result<&2, &2, Bytes.Error, Bytes>:  match xs:    case Nil{}:      Done{Bytes{Nil{}}}    case Con{+h, t}:      Bytes.from_u32_list.go(t, Nil{}, 0n, Bytes.ok_byte(h), h)def Bytes.from_u32_list(  values: List<&2, U32>) -> Result<&2, &2, Bytes.Error, Bytes>:  Bytes.from_u32_list.start(values)def Bytes.to_u32_list(b: Bytes) -> List<&2, U32>:  match b:    case Bytes{data}:      data