Index struct type is used to specify the config type. The type should line up with one of the types of indexes in your graph (list is GPTListIndex, simple_dict is GPTSimpleVectorIndex, etc).
query_kwargs are the extra options for the config. Like sometimes you might do query(..., similarity_top_k=3), so similarity_top_k is a kwarg
Hi Logan, thanks for your patience. it looks like in the screenshot i shared above, there's no need to specify a config for each vector index, correct? you could simply have one entry in query_config for index_struct_typesimple_dict