[Bug]: "--is-human" parameter is not work at the "distribute_debate" example

[leenamx]

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Describe the bug
I find an error when I test the distributed debate example:

There is no difference when I added "--is-human" parameter as Pro or Con, and I cannot input message showed as Step 3. They two agents just debate iteratively.

To Reproduce
Steps to reproduce the behavior:

1. official code
2. obey the readme
3. Pro and Con just debate iteratively, I cannot join it.

Expected behavior
If I join as Con, I should see something like:

System: Welcome to the debate on whether Artificial General Intelligence (AGI) can be achieved
...
Pro: Thank you. I argue that AGI can be achieved using the GPT model framework.
...
User Input:

Error messages
Detailed error messages.

Environment (please complete the following information):

• AgentScope Version: 0.1.2.dev0
• Python Version: 3.9
• OS: Ubuntu 24.04

Additional context
Add any other context about the problem here.

[pan-x-c]

Sorry for the late reply.
The --is-human was accidentally removed in a past refactor. We will fix it later.