message: description for never
diff: @@ -270,7 +270,7 @@ interface CalculateChangesetUnprocessedResult {
  errors: ChangesetError[];
  /** Always returns `unprocessed`. */
  status: 'unprocessed';
  - /** Returns string `never`. */
  + /** Not returned for unprocessed result. */
  calculatedPurchase?: never;
  }
  /** Returns a `CalculatedPurchase` for processed changeset. */
  