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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 is_empty(self):
 """Return True if the table has no columns or the only column is the id"""

        if len(self.columns) == 0:
            return True

        if len(self.columns) == 1 and self.columns[0].name == 'id':
            return True

        return False