interface IMigratableStakingContract {
    /// @dev Returns the address of the underlying staked token.
    /// @return IERC20 The address of the token.
    function getToken() external view returns (IERC20);

    /// @dev Stakes ORBS tokens on behalf of msg.sender. This method assumes that the user has already approved at least
    /// the required amount using ERC20 approve.
    /// @param _stakeOwner address The specified stake owner.
    /// @param _amount uint256 The number of tokens to stake.
    function acceptMigration(address _stakeOwner, uint256 _amount) external;

    event AcceptedMigration(address indexed stakeOwner, uint256 amount, uint256 totalStakedAmount);
}
/// @title An interface for staking contracts which support stake migration.
function getToken() external view returns (IERC20);

/// @dev Returns the address of the underlying staked token.
/// @return IERC20 The address of the token.