From 1f5c579ef4de385c14306f8b0ec539e39a36e432 Mon Sep 17 00:00:00 2001
From: Bagatur <baskaryan@gmail.com>
Date: Wed, 30 Aug 2023 13:37:50 -0700
Subject: [PATCH] add

---
 .../langchain/utils/openai_functions.py       | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 libs/langchain/langchain/utils/openai_functions.py

diff --git a/libs/langchain/langchain/utils/openai_functions.py b/libs/langchain/langchain/utils/openai_functions.py
new file mode 100644
index 00000000000..48c49541dcf
--- /dev/null
+++ b/libs/langchain/langchain/utils/openai_functions.py
@@ -0,0 +1,29 @@
+from typing import Dict, Optional, Type, TypedDict, cast
+
+from langchain.pydantic_v1 import BaseModel
+from langchain.utils.json_schema import dereference_refs
+
+
+class FunctionDescription(TypedDict):
+    """Representation of a callable function to the OpenAI API."""
+
+    name: str
+    """The name of the function."""
+    description: str
+    """A description of the function."""
+    parameters: dict
+    """The parameters of the function."""
+
+
+def convert_pydantic_to_openai_function(
+    model: Type[BaseModel],
+    *,
+    name: Optional[str] = None,
+    description: Optional[str] = None
+) -> FunctionDescription:
+    schema = cast(Dict, dereference_refs(model.schema()))
+    return {
+        "name": name or schema["title"],
+        "description": description or schema["description"],
+        "parameters": schema,
+    }