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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _c0(self):
        "the logarithm of normalizing constant in pdf"
        h_df = self.df / 2
        p, S = self._p, self.S

        return h_df * (logdet(S) + p * logtwo) + lpgamma(p, h_df)