function allowance(address, address) pure returns (uint256)

function approve(address, uint256) pure returns (bool)

function balanceOf(address account) view returns (uint256)

function decimals() view returns (uint8)

function name() view returns (string)

function schedules(bytes32) view returns (uint64 expiresAt, address beneficiary, uint256 amount)

function symbol() view returns (string)

function totalSupply() view returns (uint256)

function transfer(address, uint256) pure returns (bool)

function transferFrom(address, address, uint256) pure returns (bool)

function underlyingToken() view returns (address)

function initialize(address underlyingToken_)

function lock(address beneficiary, uint256 amount, uint64 expiresAt) returns (bytes32 scheduleId)

function release(bytes32 scheduleId)

function releaseMany(bytes32[] scheduleIds)

event Approval(address indexed owner, address indexed spender, uint256 value)

event Initialized(uint8 version)

event ScheduleCreated(bytes32 indexed scheduleId, address indexed beneficiary, address indexed creator, uint256 amount, uint64 expiresAt)

event ScheduleReleased(bytes32 indexed scheduleId, address indexed beneficiary, uint256 amount)

event Transfer(address indexed from, address indexed to, uint256 value)

error DuplicateSchedule()

error NotSupported()

error ScheduleOutOfRange()

error StillLocked()