当我使用lock.releaselib时fakeredis，出现以下异常：
File "/usr/local/lib/python3.6/site-packages/redis/lock.py", line 111, in acquire
if self.do_acquire(token):
File "/usr/local/lib/python3.6/site-packages/redis/lock.py", line 258, in do_acquire
client=self.redis))
File "/usr/local/lib/python3.6/site-packages/redis/client.py", line 2950, in __call__
return client.evalsha(self.sha, len(keys), *args)
File "/usr/local/lib/python3.6/site-packages/redis/client.py", line 2079, in evalsha
return self.execute_command('EVALSHA', sha, numkeys, *keys_and_args)
File "/usr/local/lib/python3.6/site-packages/redis/client.py", line 667, in execute_command
connection.send_command(*args)
File "/usr/local/lib/python3.6/site-packages/redis/connection.py", line 610, in send_command
self.send_packed_command(self.pack_command(*args))
File "/usr/local/lib/python3.6/site-packages/redis/connection.py", line 590, in send_packed_command
self._sock.sendall(item)
File "/usr/local/lib/python3.6/site-packages/fakeredis/_server.py", line 808, in sendall
self._parser.send(data)
File "/usr/local/lib/python3.6/site-packages/fakeredis/_server.py", line 725, in _parse_commands
self._process_command(fields)
File "/usr/local/lib/python3.6/site-packages/fakeredis/_server.py", line 827, …