pragma ever -solidity ^0.62.0;

/**
 * @dev Interface describing the callback function that is called by the
 * token root contract after the ownership transfer.
 */
interface ITransferTokenRootOwnershipCallback {

    /**
        @dev This function is called by the token root contract after the ownership transfer.
        @param oldOwner The address of the old owner.
        @param newOwner The address of the new owner.
        @param remainingGasTo The address of the contract that will receive the remaining gas.
        @param payload Payload data.

        @dev not having this function in the interface will cause the compiler to generate a default implementation of this function.
     */
    function onTransferTokenRootOwnership(
        address oldOwner,
        address newOwner,
        address remainingGasTo,
        TvmCell payload
    ) external;

}