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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def new_autorow(self, row=None):
 """ Sets the auto-add row. If row=None, increments by 1 """

        if row==None: self._auto_row += 1
        else:         self._auto_row = row

        self._auto_column=0
        return self