public AcadSpline AddSpline(object vvarPointsArray, object vvarStartTangent, object vvarEndTangent, string nvstrHandle = "") { return(mobjAcadBlock.AddSpline(RuntimeHelpers.GetObjectValue(vvarPointsArray), RuntimeHelpers.GetObjectValue(vvarStartTangent), RuntimeHelpers.GetObjectValue(vvarEndTangent), nvstrHandle)); }