old_contents: import struct
  from utils import *
  
  class ChangeCipherSpecMessage(object):
  
      def __init__(self):
          self.bytes = ''
  
      @classmethod
      def create(cls):
          self = cls()
          self.bytes = '\1'
  
          return self
  
      def __len__(self):
          return len(self.bytes)
  
new_contents: import struct
  from utils import *
  
  class ChangeCipherSpecMessage(object):
  
      def __init__(self):
          self.bytes = ''
  
      def value(self):
          return ord(self.bytes[0])
  
      @classmethod
      def create(cls):
          self = cls()
          self.bytes = '\1'
  
          return self
  
      @classmethod
      def from_bytes(cls, bytes):
          self = cls()
          self.bytes = bytes
          return self
  
      def __len__(self):
          return len(self.bytes)
  
subject: Complete change cipher spec