In all of our supported methods the response will either be an array of results or an error response.
<error> <method>isModelOnline</method> <code>INVALID_MODEL_ID</code> <description>Model ID is missing or invalid</description> </error>
If an error is produced there will always be a description of why it happened. If you find that any of the error descriptions aren't clear enough or you are unable to resolve an issue please contact us.