struct Grade {
  string name;
  uint256 fee;
  uint256 requiredTokens;
  uint256 requiredWLVerifiers;
  uint256 requiredCommunityUsers;
}

struct AttestationRequestData {
  address recipient;
  uint64 expirationTime;
  bool revocable;
  bytes32 refUID;
  bytes data;
}

struct AttestationRequest {
  bytes32 schema;
  struct AttestationRequestData data;
}

struct AttestationsResult {
  uint256 usedValue;
  bytes32[] uids;
}

struct ChallengeRequestData {
  address recipient;
  uint64 expirationTime;
  bool revocable;
  bytes32 refUID;
  bytes data;
  uint256 value;
}

struct ChallengeRequest {
  bytes32 attestation;
  struct ChallengeRequestData data;
}

struct CulturaRightsBoundAccountInfo {
  address rightsBoundAccount;
  address attester;
  address digitalAssetAddress;
  uint256 digitalAssetId;
}

error TransferFailed()

error VerifierNotWhitelisted()

error AttestationDoesNotExist()

error AlreadyRevoked()

error AlreadyRevokedOffchain()

error AlreadyTimestamped()

error InsufficientValue()

error InvalidAttestation()

error InvalidAttestations()

error InvalidExpirationTime()

error InvalidOffset()

error InvalidRegistry()

error InvalidRevocation()

error InvalidRevocations()

error InvalidSchema()

error InvalidVerifier()

error Irrevocable()

error NotPayable()

error WrongSchema()

error LevelAlreadyExists()

error DigitalAssetCollectionCantBe0Address()

error ValueSentLessThanGradeFee()

error AssetHasToBeVerifiedRights()

function getSchemaRegistryfunction getSchemaRegistry() external view returns (contract ISchemaRegistry)

function attestfunction attest(struct AttestationRequest request, address digitalAssetAddress, uint256 digitalAssetId, uint256 grade, uint256 amount) external returns (bytes32)

function delegatedAttestfunction delegatedAttest(struct SignatureUtils.SignatureParams delegatedSignature, struct AttestationRequest request, address digitalAssetAddress, uint256 digitalAssetId, uint256 grade, uint256 amount, address attester) external returns (bytes32)

function verifyAttestationfunction verifyAttestation(bytes32 attestationUID, uint256 bondedAmount) external

function challengeAttestationfunction challengeAttestation(struct ChallengeRequest request, uint256 challengeAmount) external

function isAttestationValidfunction isAttestationValid(bytes32 uid) external view returns (bool)

function addWLVerifierfunction addWLVerifier(address verifier) external

function removeWLVerifierfunction removeWLVerifier(address verifier) external

function getNoncefunction getNonce(address user) external view returns (uint256)

event Attestedevent Attested(address recipient, address attester, bytes32 uid, bytes32 schemaUID, uint256 grade)

event Verifiedevent Verified(address attester, bytes32 attestationUID)

event Challengedevent Challenged(address challenger, bytes32 uid, uint256 bondedAmount)

event Revokedevent Revoked(address recipient, address attester, bytes32 uid, bytes32 schemaUID)

event Timestampedevent Timestamped(bytes32 data, uint64 timestamp)

event RevokedOffchainevent RevokedOffchain(address revoker, bytes32 data, uint64 timestamp)

event CulturaRightsBoundAccountDeployedevent CulturaRightsBoundAccountDeployed(struct CulturaRightsBoundAccountInfo rightsBoundAccount)

event VerifierWLStateChangedevent VerifierWLStateChanged(address verifier, bool isWhitelisted)