code: def test_simple_exp(self):
      self._test_equal("(E4.3)", ExpFormat(4, 3))
  
file_path: catboost/contrib/python/scipy/py3/scipy/io/harwell_boeing/tests/test_fortran_format.py
imports: import numpy
  from numpy.testing import assert_equal
  from pytest import raises
  from scipy.io.harwell_boeing._fortran_format_parser import FortranFormatParser, IntFormat, ExpFormat, BadFortranFormat
label_desc: Use image node_id 5 for calling the TestFortranFormatParser obj's underlying member method code with example usage: obj.test_simple_exp() without return types