interface IInventoryItem {
event Approval(address indexed owner, address indexed spender, uint256 value);
event Transfer(address indexed from, address indexed to, uint256 value);
function allowance(address owner, address spender) view returns (uint256);
function approve(address spender, uint256 amount) returns (bool);
function balanceOf(address account) view returns (uint256);
function burn(uint256 amount);
function burnFrom(address account, uint256 amount);
function decimals() view returns (uint8);
function decreaseAllowance(address spender, uint256 subtractedValue) returns (bool);
function increaseAllowance(address spender, uint256 addedValue) returns (bool);
function name() view returns (string);
function paused() view returns (bool);
function symbol() view returns (string);
function totalSupply() view returns (uint256);
function transfer(address to, uint256 amount) returns (bool);
function transferFrom(address from, address to, uint256 amount) returns (bool);
}