Refinement.swap_observed: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/storage/refinement.bend as Refinement
Lines 364-371 of bendtorch-core@0.1.0.0/src/storage/refinement.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/storage/refinement.bend&start_line=364&end_line=371

import Base
import bendtorch-core@0.1.0.0/src/storage/model.bend as Model

def swap_observed(-T: Data, -d: Nat, -original: Array<T>, -i: U32, -new: T,
  cert: SwapFull<T, d, original, i, new>) ->
  {Some{second(T, Array.swap(T, original, i, new))} ==
    Model.observe(T, d, original, route(d, i)) : Maybe<&2, T>}:
  match cert:
    case SwapFull{array, old, equal, written, observed, valid}:
      %equal : {Some{second(T, _)} == Model.observe(T, d, original, route(d, i)) : Maybe<&2, T>}
      observed

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.swap
  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=U32
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/model.bend&name=observe
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/refinement.bend&name=SwapFull
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/refinement.bend&name=route
  https://jend.leeeet.dev/definition.txt?path=bendtorch-core@0.1.0.0/src/storage/refinement.bend&name=second