Update tools.py

tools.py

@@ -0,0 +1,62 @@
+from langchain_core.tools import tool
+from langchain_community.tools.tavily_search import TavilySearchResults
+
+@tool
+def add(a: int, b: int) -> int:
+    """
+    Sums two values and returns the result of the sum
+
+    Args:
+        a: first number
+        b: second number
+    """
+    return a + b
+
+@tool
+def substract(a: int, b: int) -> int:
+    """
+    Subtracts one value from another and returns the result of the sum
+
+    Args:
+        a: first number
+        b: second number
+    """
+    return a - b
+
+@tool
+def multiply(a: int, b: int) -> int:
+    """
+    Multiplies two values and returns the result of the sum
+
+    Args:
+        a: first number
+        b: second number
+    """
+    return a * b
+
+@tool
+def divide(a: int, b: int) -> int:
+    """
+    Divides two values and returns the result of the sum
+
+    Args:
+        a: numerator
+        b: denominator
+    """
+    if b == 0:
+        raise ValueError("Cannot divide by zero.")
+    return a / b
+
+@tool
+def web_search(query: str) -> str:
+    """Search Tavily for a query and return maximum 3 results.
+    
+    Args:
+        query: The search query."""
+    search_docs = TavilySearchResults(max_results=3).invoke(query=query)
+    formatted_search_docs = "\n\n---\n\n".join(
+        [
+            f'<Document source="{doc.metadata["source"]}" page="{doc.metadata.get("page", "")}"/>\n{doc.page_content}\n</Document>'
+            for doc in search_docs
+        ])
+    return {"web_results": formatted_search_docs}