C# GetDirectionalSurveys

I am trying to check if a Directional Survey exists for a given chosenId/datasource, but the GetDirectionalSurveys method does not have a datasource parameter. If I try to call it with a chosenId, I get the following error: ‘Error calling GetDirectionalSurveys: {“name”:“RequestStructureError”,“message”:“Incomplete filter selection. The filters chosenID and dataSource are both required if either is used.”,“details”:{“location”:“query”}}’

Try adding ‘dataSource’ along with ‘chosenID’ in the query string. I think our documentation is missing that.