def METHOD_NAME():
    try:
        pid = os.fork() # fork in a thread
    except RuntimeError:
        sys.exit(0) # exit the child
    if pid == 0: # child
        os.close(self.read_fd)
        os.write(self.write_fd, "OK")
        sys.exit(0)
    else: # parent
        os.close(self.write_fd)