What library do you get AuthenticationRequest class from?

[Shinehah-Gnolaum]

What do I put in my pom.xml in order to import the AuthenticationRequest class that you use? I'm trying to duplicate your work.

[Shinehah-Gnolaum]

The import statements in this code are packages starting with "com.huaylupo.cognito". How do I look into that source and figure out where you got some of the classes you use? I haven't been able to find anything on the internet for example for the CognitoException class. I'm not able to import that class when I try to follow your tutorial on my own Maven Project in Eclipse.