export type NetworkString = 'mainnet' | 'testnet';
export interface DAppSigner {
    getAccountId(): {
        toString(): string;
    };
    [key: string]: unknown;
}
export type WalletInfo = {
    accountId: string;
    network: NetworkString;
};
export type WalletInfoResolver = () => Promise<WalletInfo | null> | WalletInfo | null;
export type WalletExecutor = (base64: string, network: NetworkString) => Promise<{
    transactionId: string;
}>;
export type HCSOperation = 'submitConnectionRequest' | 'handleConnectionRequest' | 'sendMessage' | 'hcs2.createRegistry' | 'hcs2.migrateRegistry' | 'hcs2.registerEntry' | 'hcs2.updateEntry' | 'hcs2.deleteEntry' | 'hcs2.submitMessage' | 'hcs6.createRegistry' | 'hcs6.registerEntry' | 'hcs6.submitMessage';
export type StartHCSDelegate = (op: HCSOperation, request: Record<string, unknown>, network: NetworkString) => Promise<{
    transactionBytes: string;
}>;
/**
 * Central registry for browser signer and wallet execution delegates
 */
export declare class SignerProviderRegistry {
    private static _signerProvider;
    private static _walletInfoResolver;
    private static _walletExecutor;
    private static _startHCSDelegate;
    private static _browserHCSClientFactory;
    private static _preferWalletOnly;
    static setSignerProvider(provider: typeof SignerProviderRegistry._signerProvider): void;
    static getSigner(): Promise<DAppSigner | null>;
    static setWalletInfoResolver(resolver: WalletInfoResolver | null): void;
    static getWalletInfo(): Promise<WalletInfo | null>;
    static setWalletExecutor(executor: WalletExecutor | null): void;
    static get walletExecutor(): WalletExecutor | null;
    static setStartHCSDelegate(delegate: StartHCSDelegate | null): void;
    static get startHCSDelegate(): StartHCSDelegate | null;
    static setPreferWalletOnly(flag: boolean): void;
    /**
     * Register a factory to construct a BrowserHCSClient-like instance for wallet-driven flows
     */
    static setBrowserHCSClientFactory(factory: ((network: NetworkString) => unknown) | null): void;
    static getBrowserHCSClient(network: NetworkString): unknown | null;
    static get preferWalletOnly(): boolean;
}