code: def increment(self, column, amount=1, extras=None):
          
          extras = self._add_updated_at_column(extras)
  
          return self._query.increment(column, amount, extras)
docs: Increment a column's value by a given amount
  
          :param column: The column to increment
          :type column: str
  
          :param amount: The amount by which to increment
          :type amount: int
  
          :param extras: Extra columns
          :type extras: dict
  
          :return: The number of rows affected
          :rtype: int