From 23c5d87311fe1e5d505171912563b61f1e545561 Mon Sep 17 00:00:00 2001
From: Eugene Yurtsev <eyurtsev@gmail.com>
Date: Wed, 1 May 2024 15:24:02 -0400
Subject: [PATCH] langchain[patch]: Migrate utils to use optional
 langchain_community (#21163)

Migrate utils to use optional imports from langchain community
---
 .../langchain/utils/ernie_functions.py        | 35 +++++++++++++++----
 libs/langchain/langchain/utils/openai.py      | 24 +++++++++++--
 2 files changed, 51 insertions(+), 8 deletions(-)

diff --git a/libs/langchain/langchain/utils/ernie_functions.py b/libs/langchain/langchain/utils/ernie_functions.py
index e71152a5bf5..251d5fb239e 100644
--- a/libs/langchain/langchain/utils/ernie_functions.py
+++ b/libs/langchain/langchain/utils/ernie_functions.py
@@ -1,9 +1,32 @@
-from langchain_community.utils.ernie_functions import (
-    FunctionDescription,
-    ToolDescription,
-    convert_pydantic_to_ernie_function,
-    convert_pydantic_to_ernie_tool,
-)
+from typing import TYPE_CHECKING, Any
+
+from langchain._api import create_importer
+
+if TYPE_CHECKING:
+    from langchain_community.utils.ernie_functions import (
+        FunctionDescription,
+        ToolDescription,
+        convert_pydantic_to_ernie_function,
+        convert_pydantic_to_ernie_tool,
+    )
+
+# Create a way to dynamically look up deprecated imports.
+# Used to consolidate logic for raising deprecation warnings and
+# handling optional imports.
+DEPRECATED_LOOKUP = {
+    "FunctionDescription": "langchain_community.utils.ernie_functions",
+    "ToolDescription": "langchain_community.utils.ernie_functions",
+    "convert_pydantic_to_ernie_function": "langchain_community.utils.ernie_functions",
+    "convert_pydantic_to_ernie_tool": "langchain_community.utils.ernie_functions",
+}
+
+_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP)
+
+
+def __getattr__(name: str) -> Any:
+    """Look up attributes dynamically."""
+    return _import_attribute(name)
+
 
 __all__ = [
     "FunctionDescription",
diff --git a/libs/langchain/langchain/utils/openai.py b/libs/langchain/langchain/utils/openai.py
index dfc00bd8ebc..2b159aec853 100644
--- a/libs/langchain/langchain/utils/openai.py
+++ b/libs/langchain/langchain/utils/openai.py
@@ -1,3 +1,23 @@
-from langchain_community.utils.openai import is_openai_v1
+from typing import TYPE_CHECKING, Any
 
-__all__ = ["is_openai_v1"]
+from langchain._api import create_importer
+
+if TYPE_CHECKING:
+    from langchain_community.utils.openai import is_openai_v1
+
+# Create a way to dynamically look up deprecated imports.
+# Used to consolidate logic for raising deprecation warnings and
+# handling optional imports.
+DEPRECATED_LOOKUP = {"is_openai_v1": "langchain_community.utils.openai"}
+
+_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP)
+
+
+def __getattr__(name: str) -> Any:
+    """Look up attributes dynamically."""
+    return _import_attribute(name)
+
+
+__all__ = [
+    "is_openai_v1",
+]