code: def test_hex_roundtrip(self, binary):
      converted = binascii.hexlify(self.type2test(binary))
      restored = binascii.unhexlify(self.type2test(converted))
      self.assertConversion(binary, converted, restored)
  
imports: import unittest
  import binascii
  import array
  import re
  from test.support import bigmemtest, _1G, _4G
  from test.support.hypothesis_helper import hypothesis
label_desc: Use image node_id 15 for calling the BinASCIITest obj's underlying member method code with example usage: obj.test_hex_roundtrip(binary) without return types