Hello. I am trying to evaluate a retriever, and I see that using the methods in this documentation: https://docs.llamaindex.ai/en/stable/examples/evaluation/retrieval/retriever_eval.html , we generate question context pairs. Say that I already have a question context pair, how can I use LlamaIndex's RetrieverEvaluator to fit with my generated question context pair?
I'd maybe want to test out different chunking methods, so I may not know the expected node ids in advance. Would it be possible to use only expected_text?
Or maybe have the expected id be the id of the document, so that if a node comes from a certain document, it is considered a hit.
