import { type Base64EncodedWireTransaction, type TransactionPartialSigner } from '@solana/kit';
/**
 * Decode a base64 wire transaction, co-sign it with a TransactionPartialSigner,
 * and return the co-signed base64 wire transaction.
 *
 * Uses the signer's `signTransactions()` to obtain the signature, then merges
 * it into the decoded transaction. This bridges decoded wire transactions with
 * any signer interface (Keychain, Privy, Turnkey, AWS KMS, etc.).
 */
export declare function coSignBase64Transaction(signer: TransactionPartialSigner, clientTxBase64: string): Promise<Base64EncodedWireTransaction>;
//# sourceMappingURL=transactions.d.ts.map