export type UsbEndpoint = {
    endpointNumber: number;
    direction: 'in' | 'out';
    type: string;
    packetSize: number;
};
export type UsbmuxCandidate = {
    configurationValue: number;
    interfaceNumber: number;
    alternateSetting: number;
    endpoints: UsbEndpoint[];
};
export declare function requestAppleDevice(): Promise<USBDevice>;
export declare function findUsbmuxCandidates(device: USBDevice): UsbmuxCandidate[];
export declare function claimUsbmux(device: USBDevice, candidate: UsbmuxCandidate): Promise<void>;
export declare function getBulkEndpoints(candidate: UsbmuxCandidate): {
    outEndpoint: UsbEndpoint;
    inEndpoint: UsbEndpoint;
};
export declare function transferOutWithZlp(device: USBDevice, endpoint: UsbEndpoint, bytes: Uint8Array): Promise<void>;
export declare function transferIn(device: USBDevice, endpoint: UsbEndpoint, size?: number): Promise<Uint8Array<ArrayBufferLike>>;