def METHOD_NAME():
    one = covariance.EmpiricalPrecision()
    many = covariance.EmpiricalPrecision()
    X = np.random.random((100, 5))
    for x, _ in stream.iter_array(X):
        one.update(x)
    many.update_many(pd.DataFrame(X))
    for i, j in one._inv_cov:
        assert math.isclose(one[i, j], many[i, j])