UMA Arbitration Policy

/// @notice Raises a dispute on a given ipId
/// @param targetIpId The ipId that is the target of the dispute
/// @param disputeEvidenceHash The hash pointing to the dispute evidence - this could be an IPFS CID 				converted to a bytes32 hash. This is the document with the proof that UMA reviewers will potentially read
/// @param targetTag The target tag of the dispute
/// @param data The data to initialize the policy - here you can do abi.encode of liveness, token address 	and bond amount
/// @return disputeId The id of the newly raised dispute
function raiseDispute(
 address targetIpId,
 bytes32 disputeEvidenceHash,
 bytes32 targetTag,
 bytes calldata data
) external returns (uint256 disputeId);

/// @notice Allows the IP that was targeted with a dispute to dispute the assertion while providing counter evidence
/// @param assertionId The identifier of the assertion that was disputed
/// @param counterEvidenceHash The hash of the counter evidence
function disputeAssertion(bytes32 assertionId, bytes32 counterEvidenceHash) external;

/// @notice Returns the assertion id for a given dispute id
/// @param disputeId The dispute id
function disputeIdToAssertionId(uint256 disputeId) external view returns (bytes32);