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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 validate(self, asset, amount, portfolio, algo_datetime, algo_current_data):
 """ Fail if the given order would cause the magnitude of our position to be greater in shares than self.max_shares or greater in dollar value than self.max_notional. """


        if self.asset is not None and self.asset != asset:
            return

        current_share_count = portfolio.positions[asset].amount
        shares_post_order = current_share_count + amount

        too_many_shares = (self.max_shares is not None and
                           abs(shares_post_order) > self.max_shares)
        if too_many_shares:
            self.handle_violation(asset, amount, algo_datetime)

        current_price = algo_current_data.current(asset, "price")
        value_post_order = shares_post_order * current_price

        too_much_value = (self.max_notional is not None and
                          abs(value_post_order) > self.max_notional)

        if too_much_value:
            self.handle_violation(asset, amount, algo_datetime)