code: def get(self):
          
  
          # First retrieve all header bytes in order to extract
          # length of the message remainder.
          header = ''
          while len(header) < self.HEADER_LENGTH:
              chunk = self._sock.recv(self.HEADER_LENGTH - len(header))
              chunk = chunk.decode() if self._encode else chunk
              if chunk == '':
                  return None
              header += chunk
          length = int(header)
  
          # Then retrieve the remainder of the message.
          message = ''
          while len(message) < length:
              chunk = self._sock.recv(length - len(message))
              chunk = chunk.decode() if self._encode else chunk
              if chunk == '':
                  return None
              message += chunk
          return message
docs: Receive a message.
          Return the message upon successful reception, or None upon failure.