If I want to mint a src7 similar to eth ERC72 whose tokenId equals 1, do I not support it?

General
1

Which one represents something like tokenId?

#[storage(read, write)]
    fn mint(recipient: Identity, sub_id: SubId, amount: u64) {
         // Checks to ensure this is a valid mint.
        let asset = AssetId::new(ContractId::this(), sub_id);
         require(amount == 1, MintError::CannotMintMoreThanOneNFTWithSubId);
        require(
            storage
                .total_supply
                .get(asset)
                .try_read()
                .is_none(),
            MintError::NFTAlreadyMinted,
        );
        

        // Mint the NFT
        let _ = _mint(
            storage.total_assets,
            storage.total_supply,
            recipient,
            sub_id,
            amount,
        );
       
    }
2

Hey @lopo1, have dmed you :slight_smile: