How to use the @truffle/codec.Stack function in @truffle/codec

function literalAssignments(node, stack, currentDepth) {
  let top = stack.length - 1;

  let literal;
  try {
    literal = Codec.Stack.Read.readStack(
      {
        location: "stack",
        from: top - Codec.Ast.Utils.stackSize(node) + 1,
        to: top
      },
      {
        stack,
        storage: {} //irrelevant, but let's respect the type signature :)
      }
    );
  } catch (error) {
    literal = undefined; //not sure if this is right, but this is what would
    //happen before, so I figure it's safe?
  }

  let assignment = makeAssignment(