def Base64EncodeHash(digest_value):
  return base64.encodestring(binascii.unhexlify(digest_value)).rstrip('\n')
return a list of parent configurations to use
dataset/ETHPy150Open GoogleCloudPlatform/gsutil/gslib/hashing_helper.py/Base64EncodeHash--crossover with--dataset/ETHPy150Open jansel/opentuner/opentuner/search/globalGA.py/GlobalEvolutionaryTechnique.selection