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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 move_where_clause_to_column(self, column='condition', key=None):
 """ Move whole WHERE clause to a column named `column`. """

        if self.conditions:
            expr = " AND ".join(self.conditions)
            params = self.params
            self.params = []
            self.conditions = []
        else:
            expr = '1'
            params = []
        self.add_column('({0}) AS {1}'.format(expr, column),
                        key or column,
                        params)