DynamoVisualProgramming.DynamoServices by Autodesk

<PackageReference Include="DynamoVisualProgramming.DynamoServices" Version="3.5.0-beta6760" />

 TraceUtils

public static class TraceUtils
Utility class to Get/Set TraceData
public static string GetTraceData(string key)

Returns the data that is bound to a particular key

public static void SetTraceData(string key, string value)

Set the data bound to a particular key