/**
 * ❌ metamask
 * ✅ coinbase
 * ❌ wallet-connect
 * ❌ rainbow
 * ✅ frame
 * ✅ rabby - test
 */
/**
 * Checks if the connected wallet supports signing messages from any network.
 * @returns {boolean} True if the wallet supports chain-agnostic signing, false otherwise.
 */
export declare function checkUniversalSigningSupport(walletName?: string): boolean | undefined;
