interface IRewardManager {
    /// @notice Rewards address
    /// @param _address address be rewarded
    /// @param _amount reward
    /// @dev only the pos contract can call this
    function reward(address _address, uint256 _amount) external;

    /// @notice Get RewardManager's balance
    function getBalance() external view returns (uint256);

    /// @notice Get current reward amount
    function getCurrentReward() external view returns (uint256);
}
function getCurrentReward() external view returns (uint256);

/// @notice Get current reward amount