flowchart TD
    %% -- ERC6909 --
    user --> id0{Token ID 0}
    id0 --> bn([balanceOf])
    id0 --> an([allowance])
    id0 --> tsn([totalSupply])
    id0 --> dn([decimals])

    user --> idn1{Token ID 1}
    idn1 --> balanceOf1([balanceOf])
    idn1 --> allowance1([allowance])
    idn1 --> total_supply1([totalSupply])
    idn1 --> decimals1([decimals])

    user --> idn2{Token ID n}
    idn2 --> balanceOf([balanceOf])
    idn2 --> allowance([allowance])
    idn2 --> total_supply([totalSupply])
    idn2 --> decimals([decimals])