ApprovalCallerNotOwnerNorApproved

ApprovalQueryForNonexistentToken

BalanceQueryForZeroAddress

CannotIncreaseMaxMintableSupply

CannotUpdatePermanentBaseURI

GlobalWalletLimitOverflow

InsufficientStageTimeGap

InvalidProof

InvalidQueryRange

InvalidStage

InvalidStageArgsLength

InvalidStartAndEndTimestamp

MintERC2309QuantityExceedsLimit

MintToZeroAddress

MintZeroQuantity

NoSupplyLeft

NotEnoughValue

OwnerQueryForNonexistentToken

OwnershipNotInitializedForExtraData

StageSupplyExceeded

TimestampExpired

TransferCallerNotOwnerNorApproved

TransferFromIncorrectOwner

TransferToNonERC721ReceiverImplementer

TransferToZeroAddress

URIQueryForNonexistentToken

WalletGlobalLimitExceeded

WalletStageLimitExceeded

WithdrawFailed

owner

approved

tokenId

Approval

operator

ApprovalForAll

fromTokenId

toTokenId

from

ConsecutiveTransfer

previousOwner

newOwner

OwnershipTransferred

baseURI

PermanentBaseURI

activeStage

SetActiveStage

SetBaseURI

globalWalletLimit

SetGlobalWalletLimit

maxMintableSupply

SetMaxMintableSupply

Transfer

stage

cost

walletLimit

merkleRoot

maxStageSupply

startTimeUnixSeconds

endTimeUnixSeconds

UpdateStage

value

Withdraw

approve

balanceOf

explicitOwnershipOf

addr

startTimestamp

burned

extraData

tokenIds

explicitOwnershipsOf

timestamp

getActiveStageFromTimestamp

getApproved

getGlobalWalletLimit

getMaxMintableSupply

getNumberStages

index

getStageInfo

getTokenURISuffix

isApprovedForAll

min_fee

proof

mint

name

ownerMint

ownerOf

renounceOwnership

safeTransferFrom

_data

setApprovalForAll

setBaseURI

setBaseURIPermanent

setGlobalWalletLimit

setMaxMintableSupply

newStages

setStages

suffix

setTokenURISuffix

interfaceId

supportsInterface

symbol

threshold

tokenURI

tokensOfOwner

start

stop

tokensOfOwnerIn

totalMintedByAddress

totalSupply

transferFrom

transferOwnership

updateStage

withdraw

The term "variant" typically refers to different versions or variations of a digital artwork. These variations can be created  for various purposes, such as limited editions. Here are some types of variants in digital art:

Variant's