fmt

libs/core/langchain_core/tracers/context.py

@@ -208,3 +208,6 @@ def register_configure_hook(
 
 
 register_configure_hook(run_collector_var, False)
+
+# Legacy variable, kept for backwards compatibility.
+tracing_enabled = None

libs/core/langchain_core/tracers/langchain_v1.py

@@ -0,0 +1,3 @@
+# Legacy variable, kept for backwards compatibility.
+get_headers = None
+LangChainTracerV1 = None

libs/core/langchain_core/tracers/schemas.py

@@ -35,6 +35,29 @@ class Run(BaseRunV2):
 
 Run.update_forward_refs()
 
+
+# Legacy variables, kept for backwards compatibility.
+BaseRun = None
+ChainRun = None
+LLMRun = None
+RunTypeEnum = None
+ToolRun = None
+TracerSession = None
+TracerSessionBase = None
+TracerSessionV1 = None
+TracerSessionV1Base = None
+TracerSessionV1Create = None
+
 __all__ = [
+    "BaseRun",
+    "ChainRun",
+    "LLMRun",
     "Run",
+    "RunTypeEnum",
+    "ToolRun",
+    "TracerSession",
+    "TracerSessionBase",
+    "TracerSessionV1",
+    "TracerSessionV1Base",
+    "TracerSessionV1Create",
 ]

libs/core/tests/unit_tests/callbacks/tracers/test_schemas.py

@@ -5,7 +5,17 @@ from langchain_core.tracers.schemas import __all__ as schemas_all
 def test_public_api() -> None:
     """Test for changes in the public API."""
     expected_all = [
+        "BaseRun",
+        "ChainRun",
+        "LLMRun",
         "Run",
+        "RunTypeEnum",
+        "ToolRun",
+        "TracerSession",
+        "TracerSessionBase",
+        "TracerSessionV1",
+        "TracerSessionV1Base",
+        "TracerSessionV1Create",
     ]
 
     assert sorted(schemas_all) == expected_all