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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 Cinv(self):
 """Inverse of the noise covariance."""

        try:
            return np.linalg.inv(self.c)
        except np.linalg.linalg.LinAlgError:
            print('Warning: non-invertible noise covariance matrix c.')
            return np.eye(self.c.shape[0])