code: def test_recipr0(self):
      X = np.array([[2, 1], [-4, 0]])
      Y = tools.recipr0(X)
      assert_almost_equal(Y, np.array([[0.5, 1], [-0.25, 0]]))
  
imports: from statsmodels.compat.pandas import assert_frame_equal, assert_series_equal
  from statsmodels.compat.python import lrange
  import string
  import numpy
  from numpy.random import standard_normal
  from numpy.testing import assert_almost_equal, assert_array_equal, assert_equal, assert_string_equal
  import pandas
  import pytest
  from statsmodels.datasets import longley
  from statsmodels.tools import tools
  from statsmodels.tools.tools import pinv_extended
label_desc: Use image node_id 9 for calling the TestTools obj's underlying member method code with example usage: obj.test_recipr0() without return types