hperchec

/**
 * Modifies the cells in a row.
 * Offers the possibility to set a new value or define a formula, and to change the style.
 *
 * @param {string} sheetName - The name of the spreadsheet to modify.
 * @param {number} rowIndex - The index of the row to modify.
 * @param {object} newValues - An object containing the new values for the cells.
 * The keys of the object are the column indices (starting from 1),
 * and the values are objects with the following format:
 * {