Use the new modular error handling

[cscetbon]

I read https://aws.amazon.com/blogs/developer/service-error-handling-modular-aws-sdk-js/ but I can't get to work for this error I'm getting when querying dynamoDB for an unknown key

{
    "name": "ValidationException",
    "$fault": "client",
    "$metadata": {
        "httpStatusCode": 400,
        "requestId": "...",
        "attempts": 1,
        "totalRetryDelay": 0
    },
    "__type": "com.amazon.coral.validate#ValidationException",
    "message": "The provided key element does not match the schema"
}

I'm working with aws lambda node 20.

For now I'm doing something like

try {
       ...
    }
    catch (error) {
        if (error.name == 'ValidationException') {
            return {
                statusCode: 404,
                body: "apiKey provided is invalid"
            }
        }

But I'd like to switch to using instance of