code: def test_errors(self, ftype):
      assert_raises(OverflowError, ftype("inf").as_integer_ratio)
      assert_raises(OverflowError, ftype("-inf").as_integer_ratio)
      assert_raises(ValueError, ftype("nan").as_integer_ratio)
  
imports: import fractions
  import functools
  import sys
  import types
  from typing import Any, Type
  from unittest import skipIf, SkipTest
  import pytest
  from pytest import raises
  from torch.testing._internal.common_utils import instantiate_parametrized_tests, parametrize, run_tests, TEST_WITH_TORCHDYNAMO, TestCase
label_desc: Use image node_id 3 for calling the TestAsIntegerRatio obj's underlying member method code with example usage: obj.test_errors(ftype) without return types