code: def test_multi_pvalcorrection(self):
      # test against R package multtest mt.rawp2adjp
  
      res_multtest = self.res2
      pval0 = res_multtest[:, 0]
  
      pvalscorr = np.sort(fdrcorrection(pval0, method="n")[1])
      assert_almost_equal(pvalscorr, res_multtest[:, 7], 15)
      pvalscorr = np.sort(fdrcorrection(pval0, method="i")[1])
      assert_almost_equal(pvalscorr, res_multtest[:, 6], 15)
  
imports: import pytest
  import numpy
  from numpy.testing import assert_almost_equal, assert_equal, assert_allclose
  from statsmodels.stats.multitest import multipletests, fdrcorrection, fdrcorrection_twostage, NullDistribution, local_fdr, multitest_methods_names
  from statsmodels.stats.multicomp import tukeyhsd
  from scipy.stats.distributions import norm
  import scipy
  from packaging import version
label_desc: Use image node_id 2 for calling the CheckMultiTestsMixin obj's underlying member method code with example usage: obj.test_multi_pvalcorrection() without return types