The SummaryIndex supports custom prompts?
In the docs we can find the following sentence "Some indices use different types of prompts during construction (NOTE: the most common ones, VectorStoreIndex and SummaryIndex, don’t use any).".
Let's assume that my business logic is the following:
...
index = SummaryIndex.from_documents(documents)
query_engine = index.as_query_engine()
answer = query_engine.query(question)
...
Can I use a custom prompt at all?
