How to use only the Web site environment and evaluation?

[HarryZhou-618]

Hello, Now I have built a complete Agent system, using my own web content presenter and action executor in my system.
Now I want to use WebArena for evaluation, but it seems that the sample code already provides a web abstractor and action executor for the Agent.
I wonder if I can only use the website Docker and evaluator provided by WebArena for my experiment? What do I need to provide for the evaluator? Can I run the evaluator alone?