Unified Balance
A UnifiedBalance object contains the balance of some ERC20 token across multiple blockchains. It can be fetched by calling
the getUnifiedErc20Balance function on the MultichainClient object.
type UnifiedBalance = {
balance: bigint // total balance across all blockchains
decimals: number // the number of decimals of the token for which the unified balance is fetched
breakdown: { // breakdown of balances across all queried blockchains
balance: bigint,
chainId: number
}[]
}