Swagger with AWS IAM Key / Secret User Access

Question

I am trying to use AWS API Gateway, and it is very easy to import / export API definition from Swagger.

However, I found that my API requires AWS_IAM authorization so that it is not publicly available. But I cannot find how to make it work with Swagger user interface. It seems the Swagger user interface uses only the API key, not the IAM user access key and the secret to signing Sigv4.

Does anyone know if there is a way to configure the Swagger user interface in the Access Key / Secret and sign the request for AWS_IAM auth?

Any direction would be appreciated.

Thanks,