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venv/Lib/site-packages/langchain_classic/tools/arxiv/__init__.py

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+"""Arxiv API toolkit."""

venv/Lib/site-packages/langchain_classic/tools/arxiv/tool.py

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+from typing import TYPE_CHECKING, Any
+
+from langchain_classic._api import create_importer
+
+if TYPE_CHECKING:
+    from langchain_community.tools import ArxivQueryRun
+    from langchain_community.tools.arxiv.tool import ArxivInput
+
+# Create a way to dynamically look up deprecated imports.
+# Used to consolidate logic for raising deprecation warnings and
+# handling optional imports.
+DEPRECATED_LOOKUP = {
+    "ArxivInput": "langchain_community.tools.arxiv.tool",
+    "ArxivQueryRun": "langchain_community.tools",
+}
+
+_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP)
+
+
+def __getattr__(name: str) -> Any:
+    """Look up attributes dynamically."""
+    return _import_attribute(name)
+
+
+__all__ = [
+    "ArxivInput",
+    "ArxivQueryRun",
+]