Data returned from DiscoverInterfacesOnNode question

On a subject related to https://thwack.solarwinds.com/message/257013#257013,

When I get returned data from Invoking the DiscoverInterfacesOnNode ( Orion.NPM.Interfaces/DiscoverInterfacesOnNode) verb, I have of course noticed the "Result" field, and recently noticed that one particular call returned a 1 as the Result value vs. the 0 I normally/typically see. Is there any documentation as to what these Result value(s) mean?

{
    "DiscoveredInterfaces": null,
    "Result": 1
}

Or can you / someone tell me?

Thanks,
Scott F.