Bytes.be64_at: def of bend-osdev-bytes@0.1.1.0
Import: import bend-osdev-bytes@0.1.1.0/bytes.bend as Bytes
Lines 203-204 of bend-osdev-bytes@0.1.1.0/bytes.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&start_line=203&end_line=204

import Base
import bend-osdev-word64@0.1.1.0/word64.bend as W

def be64_at(+xs: List<&2, U32>, +i: Nat) -> Maybe<&2, W.W64>:
  le64.join(be32_at(xs, Nat.add(i, 4n)), be32_at(xs, i))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=be32_at
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=le64.join
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-word64@0.1.1.0/word64.bend&name=W64