export declare const CANTON_REQUEST_PROVIDER_EVENT = "canton:requestProvider";
export declare const CANTON_ANNOUNCE_PROVIDER_EVENT = "canton:announceProvider";
export interface AnnouncedCantonProvider {
    /** Stable identifier for the wallet/extension. */
    id: string;
    /** Display name for pickers. */
    name: string;
    /** Optional icon (data URL or https URL). */
    icon?: string;
    /** Routing key for the postMessage transport (defaults to `id`). */
    target?: string;
}
/**
 * CIP-103 browser-wallet discovery (EIP-6963-style).
 * The wallet dispatches `canton:announceProvider` and dApps
 * dispatch `canton:requestProvider` to ask installed wallets to re-announce.
 * Each announcement carries a `target` we route through Sigilry's `WindowTransport`,
 * so multiple extensions coexist without contending on the `window.canton` global.
 */
export declare function discoverCantonProviders(timeoutMs?: number, win?: Window): Promise<AnnouncedCantonProvider[]>;