export type IBluetoothDeviceOpt = {};
export type IBluetoothCharacteristic = {
    startNotifications(): void;
    stopNotifications(): void;
    readValue(): Promise<DataView>;
    writeValue(buffer: Uint8Array): Promise<void>;
    addEventListener(event: 'characteristicvaluechanged', handler: (event: any) => void): any;
};
