error interface with lwk-rn 0.9.0-2.0.3

Hello, we need to use lwk-rn and download it directly from npm. However, we found that in the current version 0.9.0-2.0.3, the corresponding interfaces are not exported when importing the module. For example:
import { Mnemonic, Network, Signer, Wollet } from 'lwk-rn';
These interfaces are not available. It seems to be an issue with type definitions. Could you please update the project to properly export these interfaces in version 0.9.0-2.0.3 ? Thank you!

By the way, the lwk-rn repository does not allow creating issues.

NOTE: moved issue from https://github.com/lvaccaro/lwk-rn-example/issues/1 open by [mars-peng-lb](https://github.com/mars-peng-lb)