message: range.delete() snippet was missing required parameter
diff: @@ -941,7 +941,7 @@ Excel.Range.delete:
  var sheetName = "Sheet1";
  var rangeAddress = "D:F";
  var range = ctx.workbook.worksheets.getItem(sheetName).getRange(rangeAddress);
  - range.delete();
  + range.delete("Left");
  return ctx.sync();
  }).catch(function(error) {
  console.log("Error: " + error);
  