code: def test_no_redundancy():
      m, n = 10, 10
      A0 = np.random.rand(m, n)
      b0 = np.random.rand(m)
      A1, b1, status, message = _remove_redundancy(A0, b0)
      assert_allclose(A0, A1)
      assert_allclose(b0, b1)
      assert_equal(status, 0)
  
imports: from __future__ import division, print_function, absolute_import
  import numpy
  from numpy.testing import assert_, assert_allclose, assert_equal
  from .test_linprog import magic_square
  from scipy.optimize._remove_redundancy import _remove_redundancy
label_desc: Use image node_id 3 for calling a global function with example usage: test_no_redundancy() without return types