VocAlgorithm__mean_variance_estimator__get_mean
VocAlgorithm__mean_variance_estimator__get_mean(VocAlgorithmParams* params);
VocAlgorithm__mean_variance_estimator__get_mean(params));
*state0 = VocAlgorithm__mean_variance_estimator__get_mean(params);
VocAlgorithm__mean_variance_estimator__get_mean(params));