How to use 3rd party library in react native expo

Im total noob in RN and Expo. I'v generated new project expo init test, then cd test, then npm install --save react-native-ble-plx and started expo by npm start.
In my code I added following lines:

import { BleManager } from 'react-native-ble-plx';
export const manager = new BleManager();
manager.onStateChange(onStateChange);

When Im trying to run it from ios emulator/android or web Im getting error:

Native module cannot be null.

So, is it possible to run native module like react-native-ble-plx in Expo? If yes what am I doing wrong?

You need to eject your expo project to be able to use this library.

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