code: def test_exact_values():
      # Check that updating stored values with exact ones worked.
      with suppress_warnings() as sup:
          sup.filter(ConstantWarning)
          for key in codata.exact_values:
              assert_(
                  (codata.exact_values[key][0] - value(key))
                  / value(key)
                  == 0
              )
  
file_path: catboost/contrib/python/scipy/py3/scipy/constants/tests/test_codata.py
imports: from scipy.constants import constants, codata, find, value, ConstantWarning
  from numpy.testing import assert_equal, assert_, assert_almost_equal, suppress_warnings
label_desc: Use image node_id 7 for calling a global function with example usage: test_exact_values() without return types