def METHOD_NAME(opt):
    with DimensionalAnalysis():
        # Arrange
        si = constants_defaults.si
        T = 300 * si.kelvins
        p = 1000 * si.hPa
        formulae = Formulae(diffusion_thermics=opt)
        sut = formulae.diffusion_thermics.K
        # Act
        thermal_conductivity = sut(T, p)
        # Assert
        assert thermal_conductivity.check("[power]/[length]/[temperature]")