Source code for autorag.nodes.queryexpansion.pass_query_expansion

import pandas as pd

from autorag.nodes.queryexpansion.base import BaseQueryExpansion
from autorag.utils import result_to_dataframe




class PassQueryExpansion(BaseQueryExpansion):


	@result_to_dataframe(["queries"])
	def pure(self, previous_result: pd.DataFrame, *args, **kwargs):
		"""
		Do not perform query expansion.
		Return with the same queries.
		The dimension will be 2-d list, and the column name will be 'queries'.
		"""
		assert "query" in previous_result.columns, (
			"previous_result must have query column."
		)
		queries = previous_result["query"].tolist()
		return list(map(lambda x: [x], queries))


	def _pure(self, *args, **kwargs):
		pass