FeePayerSpec
type FeePayerSpec: PublicKey | {
  "fee": number | string | UInt64;
  "memo": string;
  "nonce": number;
  "sender": PublicKey;
 } | undefined;
Allows you to specify information about the fee payer account and the transaction.
type FeePayerSpec: PublicKey | {
  "fee": number | string | UInt64;
  "memo": string;
  "nonce": number;
  "sender": PublicKey;
 } | undefined;
Allows you to specify information about the fee payer account and the transaction.