code: def guid(self):
          '''
          Use elements from this hash set to create a unique
          (re)identifier.
          '''
          iden = hashlib.md5()
          props = {'size': self.size}
  
          for name, item in self.hashes:
              iden.update(item.digest())
              props[name] = item.hexdigest()
  
          return iden.hexdigest(), propf guid(self):
          '''
          Use elements from this hash set to create a unique
          (re)identifier.
          '''
          iden = hashlib.md5()
          props = {'size': self.size}
  
          for name, item in self.hashes:
              iden.update(item.digest())
              props[name] = item.hexdigest()
  
          return iden.hexdigest(), props
docs: Use elements from this hash set to create a unique
          (re)identifier.