The id that links a request with its responses, it is up to the calling client to make sure it is unique. However, the client does not have to pass the id if it does not need to link the request with its response. The id is always undefined if the message is unprompted (e.g., with hello) or the id unknown.
only contains the results of the slice steps to not repeat ourselves
The at this time unknown type
Similar to FileAnalysisResponseMessage this only contains the results of the slice steps.