SignerWalletAdditionalOptions
type SignerWalletAdditionalOptions = {  chain?: Chain;  secretKey?: string;  signer: Signer;};
type chain = Chain;
type secretKey = string;
type signer = Signer;
type SignerWalletAdditionalOptions = {  chain?: Chain;  secretKey?: string;  signer: Signer;};
type chain = Chain;
type secretKey = string;
type signer = Signer;