// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Minimalistic version of the IPolicyPool interface, just the methods needed for this project
 */
interface IPolicyPool {
  /**
   * @dev Reference to the main currency (ERC20) used in the protocol
   * @return The address of the currency (e.g. USDC) token used in the protocol
   */
  function currency() external view returns (IERC20Metadata);
}