contract ERC20Interface {
    // Get the account balance of another account with address _owner
    function balanceOf(address _owner) constant public returns (uint256 balance);
}
// Minimal interface for delegation needs
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/issues/20
function balanceOf(address _owner) constant public returns (uint256 balance);

// Get the account balance of another account with address _owner