Stream.drop64: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/proofs/math/random/chacha8/stream.bend as Stream
Lines 21-28 of bend-collections-laws-crypto@1.0.0.0/proofs/math/random/chacha8/stream.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/proofs/math/random/chacha8/stream.bend&start_line=21&end_line=28

import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend as W

def drop64(n: Nat, xs: List<&2, W.U64>) -> List<&2, W.U64>:
  match n xs:
    case 0n _:
      xs
    case 1n+p Nil{}:
      []
    case 1n+p Con{x, rest}:
      drop64(p, rest)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend&name=U64