[BUG] `addRow` and `addRows` types broken in 4.1.0

🐛 Bug Report

v4.1.0 of the library broke the [TypeScript] types of addRow and addRows by requiring a second argument (styleOption). This is however an optional argument.

Lib version: 4.1.0

Steps To Reproduce

const wb = new ExcelJS.Workbook();
const ws = wb.addWorksheet('blort');

ws.addRow([1]); // type error

The expected behaviour:

There should be no compilationn error, since the second argument is optional.

Possible solution (optional, but very helpful):

--- a/node_modules/exceljs/index.d.ts
+++ b/node_modules/exceljs/index.d.ts
@@ -1193,12 +1193,12 @@ export interface Worksheet {
 	 * Add a couple of Rows by key-value, after the last current row, using the column keys,
 	 * or add a row by contiguous Array (assign to columns A, B & C)
 	 */
-	addRow(data: any[] | any, styleOption: string): Row;
+	addRow(data: any[] | any, styleOption?: string): Row;

 	/**
 	 * Add multiple rows by providing an array of arrays or key-value pairs
 	 */
-	addRows(rows: any[], styleOption: string): void;
+	addRows(rows: any[], styleOption?: string): void;

[alubbe]

@guyonroche would you do the honours?

[bengry]

Looks to be fixed in 4.1.1. Closing. Thanks to everyone involved.