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from typing import List
from langchain_core.callbacks import CallbackManagerForRetrieverRun
from langchain_core.documents import Document
from langchain_core.retrievers import BaseRetriever
from langchain_community.utilities.pubmed import PubMedAPIWrapper
class PubMedRetriever(BaseRetriever, PubMedAPIWrapper):
"""`PubMed API` retriever.
It wraps load() to get_relevant_documents().
It uses all PubMedAPIWrapper arguments without any change.
"""
def _get_relevant_documents(
self, query: str, *, run_manager: CallbackManagerForRetrieverRun
) -> List[Document]:
return self.load_docs(query=query)
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