Function isExtension

Type Parameters

• K extends "Uninitialized" | "TransferFeeConfig" | "PermanentDelegate" | "ConfidentialTransferMint" | "MetadataPointer" | "GroupPointer" | "GroupMemberPointer" | "PermissionedBurn" | "TransferFeeAmount" | "MintCloseAuthority" | "ConfidentialTransferAccount" | "DefaultAccountState" | "ImmutableOwner" | "MemoTransfer" | "NonTransferable" | "InterestBearingConfig" | "CpiGuard" | "NonTransferableAccount" | "TransferHook" | "TransferHookAccount" | "ConfidentialTransferFee" | "ConfidentialTransferFeeAmount" | "TokenMetadata" | "TokenGroup" | "TokenGroupMember" | "ConfidentialMintBurn" | "ScaledUiAmountConfig" | "PausableConfig" | "PausableAccount"