Redis.decode: def of bend-kit-redis@0.3.1.0
Import: import bend-kit-redis@0.3.1.0/redis.bend as Redis
Lines 629-633 of bend-kit-redis@0.3.1.0/redis.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-redis@0.3.1.0/redis.bend&start_line=629&end_line=633

import Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes

# One reply starting at byte i of b. Every item takes at least 3 bytes and each step
# reads an item or closes one, so 2 * (len - i) + 2 steps are enough.
def decode(b: Bytes.Bytes, +i: U32) -> Bytes.Bytes & Step:
  Bytes.Bytes{+len, buf} = b
  run(Nat.add(Nat.mul(U32.to_nat((len - i : U32)), 2n), 2n), (Bytes.Bytes{len, buf}, SHead{i, Nil{}}))

Uses (12):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bytes@0.3.3.0/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=bend-kit-redis@0.3.1.0/redis.bend&name=St
  https://jend.leeeet.dev/definition.txt?path=bend-kit-redis@0.3.1.0/redis.bend&name=Step
  https://jend.leeeet.dev/definition.txt?path=bend-kit-redis@0.3.1.0/redis.bend&name=run