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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 concat(self, *others):
 """ Concatenate expression lists Returns ------- combined : ExprList """

        import ibis.expr.operations as ops

        exprs = list(self.exprs())
        for o in others:
            if not isinstance(o, ExprList):
                raise TypeError(o)
            exprs.extend(o.exprs())
        return ops.ExpressionList(exprs).to_expr()