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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 __convert_order_params_for_blotter(asset, limit_price, stop_price, style):
 """ Helper method for converting deprecated limit_price and stop_price arguments into ExecutionStyle instances. This function assumes that either style == None or (limit_price, stop_price) == (None, None). """

        if style:
            assert (limit_price, stop_price) == (None, None)
            return style
        if limit_price and stop_price:
            return StopLimitOrder(limit_price, stop_price, asset=asset)
        if limit_price:
            return LimitOrder(limit_price, asset=asset)
        if stop_price:
            return StopOrder(stop_price, asset=asset)
        else:
            return MarketOrder()