The CognitoPreTokenGenerationV2Event does not adhere to the AWS documentation

[DizzyDeveloper]

According to the the AWS documentation for the Pre token generation Lambda trigger the claims response of the CognitoPreTokenGenerationV2Event should be able to accept any one of [String, Number, Boolean, Array of strings, numbers, booleans, or a combination of any of these, JSON]. However, at the moment it just accepts a string map?
Is there any intention implement the documented specs?

Note, I did a hack around locally by cloning the CognitoPreTokenGenerationV2Event and updating the signature of ClaimsToAddOrOverride property in the AccessTokenGeneration class from:

public Dictionary<string, string> ClaimsToAddOrOverride { get; set; } = new ();
to
public Dictionary<string, object> ClaimsToAddOrOverride { get; set; } = new ();

and that works. Can something similar be done as part of this repo.

[ashishdhingra]

Based on discussion with the team, converting this discussion into bug. Please track progress there at #1798.