DynamoVisualProgramming.DynamoServices by Autodesk

<PackageReference Include="DynamoVisualProgramming.DynamoServices" Version="1.0.0-beta2" />

 IExecutionSession

public interface IExecutionSession
Represents a session object for current execution.
namespace Autodesk.DesignScript.Interfaces { public interface IExecutionSession { IConfiguration Configuration { get; } string SearchFile(string filename); } }