old_contents: # -*- coding: utf-8 -*-
  """
  hyper/http20/frame
  ~~~~~~~~~~~~~~~~~~
  
  Defines framing logic for HTTP/2.0. Provides both classes to represent framed
  data and logic for aiding the connection when it comes to reading from the
  socket.
  """
  class Frame(object):
      """
      The base class for all HTTP/2.0 frames.
      """
      # The flags defined on this type of frame.
      defined_flags = []
  
      def __init__(self):
          self.stream_id = 0
          self.flags = set()
  
      def parse_flags(self, flag_byte):
          for flag, flag_bit in self.defined_flags:
              if flag_byte & flag_bit:
                  self.flags.add(flag)
  
          return self.flags
  
      def serialize(self):
          raise NotImplementedError()
  
new_contents: # -*- coding: utf-8 -*-
  """
  hyper/http20/frame
  ~~~~~~~~~~~~~~~~~~
  
  Defines framing logic for HTTP/2.0. Provides both classes to represent framed
  data and logic for aiding the connection when it comes to reading from the
  socket.
  """
  class Frame(object):
      """
      The base class for all HTTP/2.0 frames.
      """
      # The flags defined on this type of frame.
      defined_flags = []
  
      def __init__(self, stream_id):
          self.stream_id = stream_id
          self.flags = set()
  
      def parse_flags(self, flag_byte):
          for flag, flag_bit in self.defined_flags:
              if flag_byte & flag_bit:
                  self.flags.add(flag)
  
          return self.flags
  
      def serialize(self):
          raise NotImplementedError()
  
subject: Save stream IDs.