docs: def update_many(self, table, columns, values, where_col, where_index):
          """
          Update the values of several rows.
  
          :param table: Name of the MySQL table
          :param columns: List of columns
          :param values: 2D list of rows
          :param where_col: Column name for where clause
          :param where_index: Row index of value to be used for where comparison
          :return:
          """
          for row in values:
              wi = row.pop(where_index)
              self.update(table, columns, row, (where_col, wi))