.TRANSFORM.Nuclear.ReactorKinetics.Examples.PointKinetics_Drift_Test_flat.Medium .TRANSFORM.Nuclear.ReactorKinetics.Examples.PointKinetics_Drift_Test_flat.Mediumpackage Medium = TRANSFORM.Media.Fluids.FLiBe.LinearFLiBe_pT(extraPropertiesNames = core_kinetics.summary_data.extraPropertiesNames, C_nominal = core_kinetics.summary_data.C_nominal);