skuid.events.publish documentation clarification

Questions
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4

I think I’ve connected the dots on this.  Is is safe to say that the action sequence is expecting all of the parameters in one object, but that the publication event can be extended when working with the subscribe API?  So you could define your publish action with this type of structure:
skuid.events.publish(‘EventName’,[ 
   {  Parameter1:ParameterValue1,
      Parameter2,ParameterValue2,
      Parameter2,ParameterValue3
   },
{AnotherArgument:ArgumentValue}
]);