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"""Zeroshot Retriever."""
from typing import List, Optional
from opencompass.openicl.icl_retriever import BaseRetriever
from opencompass.registry import ICL_RETRIEVERS
from opencompass.utils.logging import get_logger
@ICL_RETRIEVERS.register_module()
class ZeroRetriever(BaseRetriever):
"""Zeroshot Retriever. The retriever returns empty list for all queries.
Args:
dataset (`BaseDataset`): Any BaseDataset instances.
Attributes of ``reader``, ``train`` and ``test`` will be used.
ice_eos_token (`Optional[str]`): The end of sentence token for
in-context example template when origin `PromptTemplate` is
provided. Defaults to ''.
"""
def __init__(self, dataset, ice_eos_token: Optional[str] = '') -> None:
super().__init__(dataset, '', ice_eos_token, 0)
def retrieve(self, id_list: List[int] = None) -> List[List]:
if id_list is not None:
get_logger().warning('id_list is not empty, but will be ignored.')
rtr_idx_list = [[] for _ in range(len(self.test_ds))]
return rtr_idx_list
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