code: def test_main_exception_fixed_reps(self):
      with captured_stderr() as error_stringio:
          s = self.run_main(switches=["-n1", "1/0"])
      self.assert_exc_string(
          error_stringio.getvalue(), "ZeroDivisionError"
      )
  
imports: import timeit
  import unittest
  import sys
  import io
  from textwrap import dedent
  from test.support import captured_stdout
  from test.support import captured_stderr
label_desc: Use image node_id 45 for calling the TestTimeit obj's underlying member method code with example usage: obj.test_main_exception_fixed_reps() without return types