From 7bc4512ab7ff9ec178274ae8819dd8b3e01e7114 Mon Sep 17 00:00:00 2001
From: Mason Daugherty <github@mdrxy.com>
Date: Mon, 4 Aug 2025 15:51:42 -0400
Subject: [PATCH] add type guards to export

---
 libs/core/langchain_core/messages/__init__.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/libs/core/langchain_core/messages/__init__.py b/libs/core/langchain_core/messages/__init__.py
index 0faf0447295..410299ea5b5 100644
--- a/libs/core/langchain_core/messages/__init__.py
+++ b/libs/core/langchain_core/messages/__init__.py
@@ -54,6 +54,10 @@ if TYPE_CHECKING:
         convert_to_openai_data_block,
         convert_to_openai_image_block,
         is_data_content_block,
+        is_reasoning_block,
+        is_text_block,
+        is_tool_call_block,
+        is_tool_call_chunk,
     )
     from langchain_core.messages.function import FunctionMessage, FunctionMessageChunk
     from langchain_core.messages.human import HumanMessage, HumanMessageChunk
@@ -127,6 +131,10 @@ __all__ = (
     "filter_messages",
     "get_buffer_string",
     "is_data_content_block",
+    "is_reasoning_block",
+    "is_text_block",
+    "is_tool_call_block",
+    "is_tool_call_chunk",
     "merge_content",
     "merge_message_runs",
     "message_chunk_to_message",
@@ -186,6 +194,10 @@ _dynamic_imports = {
     "filter_messages": "utils",
     "get_buffer_string": "utils",
     "is_data_content_block": "content_blocks",
+    "is_reasoning_block": "content_blocks",
+    "is_text_block": "content_blocks",
+    "is_tool_call_block": "content_blocks",
+    "is_tool_call_chunk": "content_blocks",
     "merge_message_runs": "utils",
     "message_chunk_to_message": "utils",
     "messages_from_dict": "utils",