code: def read(self, n=None):
          
          response = b""
          while n is None or n > 0:
              c = self.stream.read(1)
              if c == b"":
                  break
              elif c == b"<":
                  c += self.stream.read(1)
                  if c == b"<?":
                      while True:
                          q = self.stream.read(1)
                          if q == b">":
                              break
                  else:
                      response += c
                      if n is not None:
                          n -= len(c)
              else:
                  response += c
                  if n is not None:
                      n -= 1
          return response
docs: Read at most *n* characters from this stream.
  
          If *n* is ``None``, return all available characters.