List endpoints request validation changes

We changed the validation rules for the List Documents and List Templates calls. You will get a "400" error when sending a request with any of the parameters empty and the following response:

{
    "type": "request_error",
    "detail": {
        "non_field_errors": [
            "{{param name}} may not be null."
        ]
    }
}

Please avoid sending requests with empty parameters. Remove such a parameter from the request or add a value.