export interface CapabilityFetchResponse {
    ok: boolean;
    json: () => Promise<unknown>;
}
export type CapabilityFetch = (url: string, init: {
    method: string;
    headers: Record<string, string>;
    body: string;
}) => Promise<CapabilityFetchResponse>;
export type TurnkeyWalletAction = 'getAddress' | 'createWallet' | 'exportWallet';
export declare function requestTurnkeySigningCapability(opts: {
    baseUrl: string;
    idToken: string;
    messageHex: string;
    fetchImpl: CapabilityFetch;
}): Promise<string>;
export declare function buildTurnkeySignRequest(opts: {
    requestId: string;
    messageHex: string;
    capability: string;
    authorization: string;
}): Record<string, unknown>;
export declare function requestTurnkeyActionAuthorization(opts: {
    baseUrl: string;
    idToken: string;
    action: TurnkeyWalletAction;
    fetchImpl: CapabilityFetch;
}): Promise<string>;
export declare function buildTurnkeyActionRequest(opts: {
    requestId: string;
    action: TurnkeyWalletAction;
    authorization: string;
}): Record<string, unknown>;