// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

/**
 * @title This interface describes the functions specific to Celo Stable Tokens, and in the
 * absence of interface inheritance is intended as a companion to IERC20.sol and ICeloToken.sol.
 */
abstract contract IStableToken is ERC20 {
    function burn(uint256) external virtual returns (bool);

    function setInflationParameters(uint256, uint256) external virtual;

    function valueToUnits(uint256) external view virtual returns (uint256);

    function unitsToValue(uint256) external view virtual returns (uint256);

    function getInflationParameters()
        external
        view
        virtual
        returns (
            uint256,
            uint256,
            uint256,
            uint256
        );
}