code: def simple_response(self, status, msg=""):
      
      status = str(status)
      buf = ["%s %s\r\n" % (self.environ['ACTUAL_SERVER_PROTOCOL'], status),
           "Content-Length: %s\r\n" % len(msg),
           "Content-Type: text/plain\r\n"]
  
      if status[:3] == "413" and self.response_protocol == 'HTTP/1.1':
        # Request Entity Too Large
        self.close_connection = True
        buf.append("Connection: close\r\n")
  
      buf.append("\r\n")
      if msg:
        buf.append(msg)
      return sockets.SendAll(self.conn, "".join(buf))
docs: Return a operation for writing simple response back to the client.