Source code for langchain_community.tools.pubmed.tool
from typing import Optional
from langchain_core.callbacks import CallbackManagerForToolRun
from langchain_core.pydantic_v1 import Field
from langchain_core.tools import BaseTool
from langchain_community.utilities.pubmed import PubMedAPIWrapper
[docs]class PubmedQueryRun(BaseTool):
"""Tool that searches the PubMed API."""
name: str = "pub_med"
description: str = (
"A wrapper around PubMed. "
"Useful for when you need to answer questions about medicine, health, "
"and biomedical topics "
"from biomedical literature, MEDLINE, life science journals, and online books. "
"Input should be a search query."
)
api_wrapper: PubMedAPIWrapper = Field(default_factory=PubMedAPIWrapper) # type: ignore[arg-type]
def _run(
self,
query: str,
run_manager: Optional[CallbackManagerForToolRun] = None,
) -> str:
"""Use the PubMed tool."""
return self.api_wrapper.run(query)