code: def address(self, compressed=True, testnet=False):
          
          version = '0x'
          return version + binascii.hexlify(self.keccak[12:]).decode('ascii')
docs: Address property that returns the Base58Check
          encoded version of the HASH160.
  
          Args:
              compressed (bool): Whether or not the compressed key should
                 be used.
              testnet (bool): Whether or not the key is intended for testnet
                 usage. False indicates mainnet usage.
  
          Returns:
              bytes: Base58Check encoded string