code: def check_float_conversion(self, n):
      # Check that int -> float conversion behaviour matches
      # that of the pure Python version above.
      try:
          actual = float(n)
      except OverflowError:
          actual = "overflow"
  
      try:
          expected = int_to_float(n)
      except OverflowError:
          expected = "overflow"
  
      msg = (
          "Error in conversion of integer {} to float.  "
          "Got {}, expected {}.".format(n, actual, expected)
      )
      self.assertEqual(actual, expected, msg)
  
imports: import unittest
  from test import support
  import sys
  import random
  import math
  import array
label_desc: Use image node_id 15 for calling the LongTest obj's underlying member method code with example usage: obj.check_float_conversion(n) without return types