function asset() external view returns (address asset_);
function pool() external view returns (address pool_);
function buyer() external view returns (address buyer_);
function config() external view returns (bool openToPublic_, uint24 adminFee_, uint32 gracePeriod_);
function poolCover() external view returns (uint256 poolCover_);
function isSeller(address seller_) external view returns (bool isSeller_);
function isLender(address lender_) external view returns (bool isLender_);