translateExpression scope _ nsid (L1.L1ExAppend ss label) =
  L2.L2ExAppend ss
    <$> translateLabelOnly "append label" scope ss nsid label
translateExpression scope _ nsid (L1.L1ExAppend ss label) =
  L2.L2ExAppend ss
    <$> translateLabelOnly "append label" scope ss nsid label
translateExpression scope _ nsid (L1.L1ExAppend ss label) =
  L2.L2ExAppend ss
    <$> translateLabelOnly "append label" scope ss nsid label