{
    "domain_name": "demo",
    "query_encoder": "facebook/contriever-msmarco",
    "query_tokenizer": "facebook/contriever-msmarco",
    "index_type": "IVFFlat",
    "per_gpu_batch_size": 128,
    "question_maxlength": 512,
    "nprobe": 128
}