code: def binary_value(self):
          
          str_raw_value = str(self.raw_value)
          if len(str_raw_value) % 2 == 1:
              str_raw_value = '0' + str_raw_value
  
          return binascii.unhexlify(str_raw_value)
docs: Converts this field to binary (assuming it's a binary string)