// Transfer sends ERC20 tokens from one account to another
func (e ERC20) Transfer(
    contractAddr gethcommon.Address,
    from gethcommon.Address,
    to gethcommon.Address,
    amount *big.Int,
    ctx sdk.Context,
) (*big.Int, *types.MsgEthereumTxResponse, error) {
    // ... transfer logic ...

    // Amount is always handled in wei (10^18)
    if amount.Cmp(big.NewInt(1e12)) < 0 {
        return nil, nil, fmt.Errorf("amount too small, minimum transfer is 10^12 wei")
    }
}
const (
    // DefaultEVMDenom defines the default EVM denomination on Nibiru: unibi
    DefaultEVMDenom = "unibi"
    // WeiFactor is the factor between wei and unibi (10^12)
    WeiFactor = 12
)
func (e ERC20) Transfer(...) {
    decimals, err := e.Decimals(contractAddr, ctx)
    if err != nil {
        return nil, nil, err
    }

    // Adjust minimum based on token decimals
    minTransfer := new(big.Int).Exp(big.NewInt(10), big.NewInt(int64(decimals)-6), nil)
    if amount.Cmp(minTransfer) < 0 {
        return nil, nil, fmt.Errorf("amount too small, minimum transfer is %s", minTransfer)
    }
}
type TokenConfig struct {
    MinTransferAmount *big.Int
    Decimals         uint8
}

func (e ERC20) GetTokenConfig(contractAddr common.Address) TokenConfig {
    // Return custom configuration per token
}
