TypeAlias.AgentWalletBalanceLine

type AgentWalletBalanceLine = 
  | {
  address: string;
  available: string;
  kind: "self-custody";
  network:   | "EthereumAnvil"
     | "BaseSepolia"
     | "BaseMainnet"
     | "XdcApothem"
     | "XdcMainnet"
     | "StellarQuickstart"
     | "StellarTestnet"
     | "StellarMainnet";
  unit: "usdc";
  valueRef: string | null;
}
  | {
  available: string;
  expiresAt: string;
  kind: "sponsor";
  unit: "usdc";
  valueRef: string | null;
}
  | {
  available: string;
  details: {
     nextExpiry:   | {
        at: string;
        remainingEur: string;
      }
        | null;
     welcomeRemainingEur: string;
  };
  display:   | {
     amount: string;
     currency: "EUR" | "USD" | "JPY";
   }
     | null;
  kind: "prepaid";
  unit: "eur";
};