public enum ScraperResultCode
This very special result code may only be returned from Login(JsonObject), when an additional challenge response value is needed for a successful log on. In response to this result code the client shall obtain the challenge response value from the user and include it with the other credentials in a followup call to Login(JsonObject).
A programmatic failure occured. Maybe missing JSON data or an invalid state for a method call. These should only occur when there is a bug in the calling code.