def _eth_to_token_swap_output(
        self, output_token: AddressLike, qty: int, recipient: Optional[AddressLike]
    ) -> HexBytes:
        """Convert ETH to tokens given an output amount."""
        if self.version == 1:
            token_funcs = self.exchange_contract(output_token).functions
            eth_qty = self.get_eth_token_output_price(output_token, qty)
            tx_params = self._get_tx_params(eth_qty)
            func_params: List[Any] = [qty, self._deadline()]
            if not recipient:
                function = token_funcs.ethToTokenSwapOutput(*func_params)
            else:
                func_params.append(recipient)
                function = token_funcs.ethToTokenTransferOutput(*func_params)
            return self._build_and_send_tx(function, tx_params)
        else:
            if recipient is None:
                recipient = self.address

            eth_qty = self.get_eth_token_output_price(output_token, qty) #<----------------------------

            return self._build_and_send_tx(
                self.router.functions.swapETHForExactTokens(
                    qty,
                    [self.get_weth_address(), output_token],
                    recipient,
                    self._deadline(),
                ),
                self._get_tx_params(eth_qty),
            )

eth_qty = int(
        (1 + self.max_slippage)*
        self.get_eth_token_output_price(output_token, qty))