def __init__(self, prefs, g, divPressureValues, kappa=<NUM_LIT>, omega=<NUM_LIT:0.5>,<EOL>beta=<NUM_LIT:1.0>, mu=<NUM_LIT:1.0>,omega2=<NUM_LIT:0.0>,<EOL>freeparams=['<STR_LIT>', '<STR_LIT>', '<STR_LIT>', '<STR_LIT>', '<STR_LIT>']):
_checkParam('<STR_LIT>',omega2, self.PARAMLIMITS, self.PARAMTYPES)<EOL>self.omega2 = omega2<EOL>self.deltar = scipy.array(divPressureValues.copy())<EOL>assert (max(scipy.absolute(self.deltar))) <= <NUM_LIT:1>, (<EOL>"<STR_LIT>")<EOL>super(ExpCM_empirical_phi_divpressure, self).__init__(prefs, g,<EOL>kappa=kappa, omega=omega, beta=beta, mu=mu,<EOL>freeparams=freeparams)<EOL>
Initialize an `ExpCM_empirical_phi_divpressure` object.

        Args:
            `prefs`, `kappa`, `omega`, `beta`, `mu`, `g`, `freeparams`
                Same meaning as for an `ExpCM_empirical_phi`
            `divPressureValues`, `omega2`
                Meaning described in the main class doc string.