// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;

interface IUniswapExchange {
    event TokenPurchase(address indexed buyer, uint256 indexed eth_sold, uint256 indexed tokens_bought);
    event EthPurchase(address indexed buyer, uint256 indexed tokens_sold, uint256 indexed eth_bought);
    event AddLiquidity(address indexed provider, uint256 indexed eth_amount, uint256 indexed token_amount);
    event RemoveLiquidity(address indexed provider, uint256 indexed eth_amount, uint256 indexed token_amount);
}