Fetch the native or ERC20 token balance of the connected wallet.
Use this method to fetch the balance of a wallet.
You can use the native currency address to fetch the balance of the native currency, or a specific ERC20 token contract address to fetch the ERC20 balance.
The address of the token smart contract that you want to get the balance for.
If no address is provided, the balance of the native currency will be used.
CurrencyValue struct containing the following properties: