interface CSportsAuctionInterface {

    /// @dev Sanity check that allows us to ensure that we are pointing to the
    ///  right auction in our setSaleAuctionAddress() call.
    function isSaleClockAuction() external pure returns (bool);

    /// @dev Creates and begins a new auction.
    /// @param _tokenId - ID of token to auction, sender must be owner.
    /// @param _startingPrice - Price of item (in wei) at beginning of auction.
    /// @param _endingPrice - Price of item (in wei) at end of auction.
    /// @param _duration - Length of auction (in seconds).
    /// @param _seller - Seller, if not the message sender
    function createAuction(
        uint256 _tokenId,
        uint256 _startingPrice,
        uint256 _endingPrice,
        uint256 _duration,
        address _seller
    ) external;

    /// @dev Reprices (and updates duration) of an array of tokens that are currently
    /// being auctioned by this contract.
    /// @param _tokenIds Array of tokenIds corresponding to auctions being updated
    /// @param _startingPrices New starting prices
    /// @param _endingPrices New ending price
    /// @param _duration New duration
    /// @param _seller Address of the seller in all specified auctions to be updated
    function repriceAuctions(
        uint256[] _tokenIds,
        uint256[] _startingPrices,
        uint256[] _endingPrices,
        uint256 _duration,
        address _seller
    ) external;

    /// @dev Cancels an auction that hasn't been won yet by calling
    ///   the super(...) and then notifying any listener.
    /// @param _tokenId - ID of token on auction
    function cancelAuction(uint256 _tokenId) external;

    /// @dev Withdraw the total contract balance to the core contract
    function withdrawBalance() external;

}
/// @dev Interface to the sale clock auction contract
function cancelAuction(uint256 _tokenId) external;

/// @dev Cancels an auction that hasn't been won yet by calling
///   the super(...) and then notifying any listener.
/// @param _tokenId - ID of token on auction