From b40433667e21af15a68c687a3cb243f1f03939c6 Mon Sep 17 00:00:00 2001
From: cbornet <cbornet@hotmail.com>
Date: Fri, 5 Dec 2025 14:31:53 +0100
Subject: [PATCH 1/2] chore(standard-tests): enable mypy disallow_any_generics
 rule

---
 libs/standard-tests/langchain_tests/conftest.py    | 12 ++++++------
 .../integration_tests/chat_models.py               |  6 +++---
 .../integration_tests/retrievers.py                |  3 ++-
 .../langchain_tests/unit_tests/chat_models.py      | 12 +++++++-----
 .../langchain_tests/unit_tests/embeddings.py       |  7 +++++--
 .../langchain_tests/unit_tests/tools.py            |  9 ++++++---
 libs/standard-tests/pyproject.toml                 |  4 ----
 .../tests/unit_tests/test_basic_retriever.py       |  2 +-
 .../tests/unit_tests/test_basic_tool.py            | 14 +++++++-------
 .../tests/unit_tests/test_custom_chat_model.py     |  6 +++---
 .../tests/unit_tests/test_decorated_tool.py        |  6 ++++--
 .../tests/unit_tests/test_embeddings.py            |  6 ++++--
 12 files changed, 48 insertions(+), 39 deletions(-)

diff --git a/libs/standard-tests/langchain_tests/conftest.py b/libs/standard-tests/langchain_tests/conftest.py
index 161fc744cbff5..4afc7b2004839 100644
--- a/libs/standard-tests/langchain_tests/conftest.py
+++ b/libs/standard-tests/langchain_tests/conftest.py
@@ -28,7 +28,7 @@ class CustomSerializer:
     """
 
     @staticmethod
-    def serialize(cassette_dict: dict) -> bytes:
+    def serialize(cassette_dict: dict[str, Any]) -> bytes:
         """Convert cassette to YAML and compress it."""
         cassette_dict["requests"] = [
             {
@@ -43,7 +43,7 @@ def serialize(cassette_dict: dict) -> bytes:
         return gzip.compress(yml.encode("utf-8"))
 
     @staticmethod
-    def deserialize(data: bytes) -> dict:
+    def deserialize(data: bytes) -> dict[str, Any]:
         """Decompress data and convert it from YAML."""
         decoded_yaml = gzip.decompress(data).decode("utf-8")
         cassette = cast("dict[str, Any]", yaml.safe_load(decoded_yaml))
@@ -59,7 +59,7 @@ def load_cassette(
         cls,
         cassette_path: str | PathLike[str],
         serializer: CustomSerializer,
-    ) -> tuple[dict, dict]:
+    ) -> tuple[list[Any], list[Any]]:
         """Load a cassette from a file."""
         # If cassette path is already Path this is a no-op
         cassette_path = Path(cassette_path)
@@ -74,7 +74,7 @@ def load_cassette(
     @staticmethod
     def save_cassette(
         cassette_path: str | PathLike[str],
-        cassette_dict: dict,
+        cassette_dict: dict[str, Any],
         serializer: CustomSerializer,
     ) -> None:
         """Save a cassette to a file."""
@@ -99,7 +99,7 @@ def save_cassette(
 
 
 @pytest.fixture(scope="session")
-def _base_vcr_config() -> dict:
+def _base_vcr_config() -> dict[str, Any]:
     """Return VCR configuration that every cassette will receive.
 
     (Anything permitted by `vcr.VCR(**kwargs)` can be put here.)
@@ -116,6 +116,6 @@ def _base_vcr_config() -> dict:
 
 
 @pytest.fixture(scope="session")
-def vcr_config(_base_vcr_config: dict) -> dict:
+def vcr_config(_base_vcr_config: dict[str, Any]) -> dict[str, Any]:
     """VCR config fixture."""
     return _base_vcr_config
diff --git a/libs/standard-tests/langchain_tests/integration_tests/chat_models.py b/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
index f547ef3711600..138a70ebc3375 100644
--- a/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
+++ b/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
@@ -75,7 +75,7 @@ def validate_joke_dict(result: Any) -> bool:
 
 
 class _TestCallbackHandler(BaseCallbackHandler):
-    options: list[dict | None]
+    options: list[dict[str, Any] | None]
 
     def __init__(self) -> None:
         super().__init__()
@@ -743,7 +743,7 @@ def pytest_recording_configure(config: dict, vcr: VCR) -> None:
     '''  # noqa: E501
 
     @property
-    def standard_chat_model_params(self) -> dict:
+    def standard_chat_model_params(self) -> dict[str, Any]:
         """Standard parameters for chat model."""
         return {}
 
@@ -3076,7 +3076,7 @@ def supports_anthropic_inputs(self) -> bool:
             "cache_control": {"type": "ephemeral"},
         }
 
-        human_content: list[dict] = [
+        human_content = [
             {
                 "type": "text",
                 "text": "what's your favorite color in this image",
diff --git a/libs/standard-tests/langchain_tests/integration_tests/retrievers.py b/libs/standard-tests/langchain_tests/integration_tests/retrievers.py
index 00ed2b0414622..636a5008ced32 100644
--- a/libs/standard-tests/langchain_tests/integration_tests/retrievers.py
+++ b/libs/standard-tests/langchain_tests/integration_tests/retrievers.py
@@ -1,6 +1,7 @@
 """Integration tests for retrievers."""
 
 from abc import abstractmethod
+from typing import Any
 
 import pytest
 from langchain_core.documents import Document
@@ -19,7 +20,7 @@ def retriever_constructor(self) -> type[BaseRetriever]:
         ...
 
     @property
-    def retriever_constructor_params(self) -> dict:
+    def retriever_constructor_params(self) -> dict[str, Any]:
         """Returns a dictionary of parameters to pass to the retriever constructor."""
         return {}
 
diff --git a/libs/standard-tests/langchain_tests/unit_tests/chat_models.py b/libs/standard-tests/langchain_tests/unit_tests/chat_models.py
index 5460623bd9aaa..70773e4361adc 100644
--- a/libs/standard-tests/langchain_tests/unit_tests/chat_models.py
+++ b/libs/standard-tests/langchain_tests/unit_tests/chat_models.py
@@ -49,12 +49,12 @@ def chat_model_class(self) -> type[BaseChatModel]:
         ...
 
     @property
-    def chat_model_params(self) -> dict:
+    def chat_model_params(self) -> dict[str, Any]:
         """Initialization parameters for the chat model."""
         return {}
 
     @property
-    def standard_chat_model_params(self) -> dict:
+    def standard_chat_model_params(self) -> dict[str, Any]:
         """Standard chat model parameters."""
         return {
             "temperature": 0,
@@ -112,7 +112,7 @@ def has_structured_output(self) -> bool:
         ) or self.has_tool_calling
 
     @property
-    def structured_output_kwargs(self) -> dict:
+    def structured_output_kwargs(self) -> dict[str, Any]:
         """Additional kwargs to pass to `with_structured_output()` in tests.
 
         Override this property to customize how structured output is generated
@@ -906,14 +906,16 @@ def init_from_env_params(self) -> Tuple[dict, dict, dict]:
     '''  # noqa: E501,D214
 
     @property
-    def standard_chat_model_params(self) -> dict:
+    def standard_chat_model_params(self) -> dict[str, Any]:
         """Standard chat model parameters."""
         params = super().standard_chat_model_params
         params["api_key"] = "test"
         return params
 
     @property
-    def init_from_env_params(self) -> tuple[dict, dict, dict]:
+    def init_from_env_params(
+        self,
+    ) -> tuple[dict[str, str], dict[str, Any], dict[str, Any]]:
         """Init from env params.
 
         Environment variables, additional initialization args, and expected instance
diff --git a/libs/standard-tests/langchain_tests/unit_tests/embeddings.py b/libs/standard-tests/langchain_tests/unit_tests/embeddings.py
index c8901ab55b7fb..34ae029b2932a 100644
--- a/libs/standard-tests/langchain_tests/unit_tests/embeddings.py
+++ b/libs/standard-tests/langchain_tests/unit_tests/embeddings.py
@@ -2,6 +2,7 @@
 
 import os
 from abc import abstractmethod
+from typing import Any
 from unittest import mock
 
 import pytest
@@ -20,7 +21,7 @@ def embeddings_class(self) -> type[Embeddings]:
         """Embeddings class."""
 
     @property
-    def embedding_model_params(self) -> dict:
+    def embedding_model_params(self) -> dict[str, Any]:
         """Embeddings model parameters."""
         return {}
 
@@ -100,7 +101,9 @@ def test_init(self) -> None:
         assert model is not None
 
     @property
-    def init_from_env_params(self) -> tuple[dict, dict, dict]:
+    def init_from_env_params(
+        self,
+    ) -> tuple[dict[str, str], dict[str, Any], dict[str, Any]]:
         """Init from env params.
 
         This property is used in unit tests to test initialization from environment
diff --git a/libs/standard-tests/langchain_tests/unit_tests/tools.py b/libs/standard-tests/langchain_tests/unit_tests/tools.py
index 530ed03e8c88a..24f7548a9ee3c 100644
--- a/libs/standard-tests/langchain_tests/unit_tests/tools.py
+++ b/libs/standard-tests/langchain_tests/unit_tests/tools.py
@@ -4,6 +4,7 @@
 
 import os
 from abc import abstractmethod
+from typing import Any
 from unittest import mock
 
 import pytest
@@ -27,12 +28,12 @@ def tool_constructor(self) -> type[BaseTool] | BaseTool:
         ...
 
     @property
-    def tool_constructor_params(self) -> dict:
+    def tool_constructor_params(self) -> dict[str, Any]:
         """Returns a dictionary of parameters to pass to the tool constructor."""
         return {}
 
     @property
-    def tool_invoke_params_example(self) -> dict:
+    def tool_invoke_params_example(self) -> dict[str, Any]:
         """Returns a dictionary representing the "args" of an example tool call.
 
         This should NOT be a `ToolCall` dict - it should not have
@@ -58,7 +59,9 @@ class ToolsUnitTests(ToolsTests):
     """Base class for tools unit tests."""
 
     @property
-    def init_from_env_params(self) -> tuple[dict, dict, dict]:
+    def init_from_env_params(
+        self,
+    ) -> tuple[dict[str, str], dict[str, Any], dict[str, Any]]:
         """Init from env params.
 
         Return env vars, init args, and expected instance attrs for initializing
diff --git a/libs/standard-tests/pyproject.toml b/libs/standard-tests/pyproject.toml
index dddecbc0e4704..6390daf40c1ce 100644
--- a/libs/standard-tests/pyproject.toml
+++ b/libs/standard-tests/pyproject.toml
@@ -54,9 +54,6 @@ strict = true
 enable_error_code = "deprecated"
 warn_unreachable = true
 
-# TODO: activate for 'strict' checking
-disallow_any_generics = false
-
 [[tool.mypy.overrides]]
 module = ["vcr.*",]
 ignore_missing_imports = true
@@ -97,7 +94,6 @@ flake8-annotations.allow-star-arg-any = true
 flake8-annotations.mypy-init-return = true
 flake8-type-checking.runtime-evaluated-base-classes = ["pydantic.BaseModel","langchain_core.load.serializable.Serializable","langchain_core.runnables.base.RunnableSerializable"]
 pep8-naming.classmethod-decorators = [ "classmethod", "langchain_core.utils.pydantic.pre_init", "pydantic.field_validator", "pydantic.v1.root_validator",]
-pyupgrade.keep-runtime-typing = true
 
 [tool.ruff.lint.pydocstyle]
 convention = "google"
diff --git a/libs/standard-tests/tests/unit_tests/test_basic_retriever.py b/libs/standard-tests/tests/unit_tests/test_basic_retriever.py
index ccff1e43e140a..847a137fc35ec 100644
--- a/libs/standard-tests/tests/unit_tests/test_basic_retriever.py
+++ b/libs/standard-tests/tests/unit_tests/test_basic_retriever.py
@@ -21,7 +21,7 @@ def retriever_constructor(self) -> type[ParrotRetriever]:
         return ParrotRetriever
 
     @property
-    def retriever_constructor_params(self) -> dict:
+    def retriever_constructor_params(self) -> dict[str, Any]:
         return {"parrot_name": "Polly"}
 
     @property
diff --git a/libs/standard-tests/tests/unit_tests/test_basic_tool.py b/libs/standard-tests/tests/unit_tests/test_basic_tool.py
index d7ab342f04329..b641b55f8a6df 100644
--- a/libs/standard-tests/tests/unit_tests/test_basic_tool.py
+++ b/libs/standard-tests/tests/unit_tests/test_basic_tool.py
@@ -1,4 +1,4 @@
-from typing import Literal
+from typing import Any, Literal
 
 from langchain_core.tools import BaseTool
 from typing_extensions import override
@@ -36,14 +36,14 @@ def tool_constructor(self) -> type[ParrotMultiplyTool]:
         return ParrotMultiplyTool
 
     @property
-    def tool_constructor_params(self) -> dict:
+    def tool_constructor_params(self) -> dict[str, Any]:
         # if your tool constructor instead required initialization arguments like
         # `def __init__(self, some_arg: int):`, you would return those here
         # as a dictionary, e.g.: `return {'some_arg': 42}`
         return {}
 
     @property
-    def tool_invoke_params_example(self) -> dict:
+    def tool_invoke_params_example(self) -> dict[str, Any]:
         """Returns a dictionary representing the "args" of an example tool call.
 
         This should NOT be a ToolCall dict - i.e. it should not
@@ -58,14 +58,14 @@ def tool_constructor(self) -> type[ParrotMultiplyTool]:
         return ParrotMultiplyTool
 
     @property
-    def tool_constructor_params(self) -> dict:
+    def tool_constructor_params(self) -> dict[str, Any]:
         # if your tool constructor instead required initialization arguments like
         # `def __init__(self, some_arg: int):`, you would return those here
         # as a dictionary, e.g.: `return {'some_arg': 42}`
         return {}
 
     @property
-    def tool_invoke_params_example(self) -> dict:
+    def tool_invoke_params_example(self) -> dict[str, Any]:
         """Returns a dictionary representing the "args" of an example tool call.
 
         This should NOT be a ToolCall dict - i.e. it should not
@@ -80,14 +80,14 @@ def tool_constructor(self) -> type[ParrotMultiplyArtifactTool]:
         return ParrotMultiplyArtifactTool
 
     @property
-    def tool_constructor_params(self) -> dict:
+    def tool_constructor_params(self) -> dict[str, Any]:
         # if your tool constructor instead required initialization arguments like
         # `def __init__(self, some_arg: int):`, you would return those here
         # as a dictionary, e.g.: `return {'some_arg': 42}`
         return {}
 
     @property
-    def tool_invoke_params_example(self) -> dict:
+    def tool_invoke_params_example(self) -> dict[str, Any]:
         """Returns a dictionary representing the "args" of an example tool call.
 
         This should NOT be a ToolCall dict - i.e. it should not
diff --git a/libs/standard-tests/tests/unit_tests/test_custom_chat_model.py b/libs/standard-tests/tests/unit_tests/test_custom_chat_model.py
index eea5550ee622c..c14b2ac848290 100644
--- a/libs/standard-tests/tests/unit_tests/test_custom_chat_model.py
+++ b/libs/standard-tests/tests/unit_tests/test_custom_chat_model.py
@@ -2,7 +2,7 @@
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any
 
 import pytest
 
@@ -21,7 +21,7 @@ def chat_model_class(self) -> type[ChatParrotLink]:
         return ChatParrotLink
 
     @property
-    def chat_model_params(self) -> dict:
+    def chat_model_params(self) -> dict[str, Any]:
         return {"model": "bird-brain-001", "temperature": 0, "parrot_buffer_length": 50}
 
 
@@ -31,7 +31,7 @@ def chat_model_class(self) -> type[ChatParrotLink]:
         return ChatParrotLink
 
     @property
-    def chat_model_params(self) -> dict:
+    def chat_model_params(self) -> dict[str, Any]:
         return {"model": "bird-brain-001", "temperature": 0, "parrot_buffer_length": 50}
 
     @pytest.mark.xfail(reason="ChatParrotLink doesn't implement bind_tools method")
diff --git a/libs/standard-tests/tests/unit_tests/test_decorated_tool.py b/libs/standard-tests/tests/unit_tests/test_decorated_tool.py
index c3b7b89d04db7..a559fe6f98e01 100644
--- a/libs/standard-tests/tests/unit_tests/test_decorated_tool.py
+++ b/libs/standard-tests/tests/unit_tests/test_decorated_tool.py
@@ -1,3 +1,5 @@
+from typing import Any
+
 from langchain_core.tools import BaseTool, tool
 
 from langchain_tests.integration_tests import ToolsIntegrationTests
@@ -16,7 +18,7 @@ def tool_constructor(self) -> BaseTool:
         return parrot_multiply_tool
 
     @property
-    def tool_invoke_params_example(self) -> dict:
+    def tool_invoke_params_example(self) -> dict[str, Any]:
         """Returns a dictionary representing the "args" of an example tool call.
 
         This should NOT be a ToolCall dict - i.e. it should not
@@ -31,7 +33,7 @@ def tool_constructor(self) -> BaseTool:
         return parrot_multiply_tool
 
     @property
-    def tool_invoke_params_example(self) -> dict:
+    def tool_invoke_params_example(self) -> dict[str, Any]:
         """Returns a dictionary representing the "args" of an example tool call.
 
         This should NOT be a ToolCall dict - i.e. it should not
diff --git a/libs/standard-tests/tests/unit_tests/test_embeddings.py b/libs/standard-tests/tests/unit_tests/test_embeddings.py
index a46d0c8e935b7..a4f075ae02938 100644
--- a/libs/standard-tests/tests/unit_tests/test_embeddings.py
+++ b/libs/standard-tests/tests/unit_tests/test_embeddings.py
@@ -1,3 +1,5 @@
+from typing import Any
+
 from langchain_core.embeddings import DeterministicFakeEmbedding, Embeddings
 
 from langchain_tests.integration_tests import EmbeddingsIntegrationTests
@@ -10,7 +12,7 @@ def embeddings_class(self) -> type[Embeddings]:
         return DeterministicFakeEmbedding
 
     @property
-    def embedding_model_params(self) -> dict:
+    def embedding_model_params(self) -> dict[str, Any]:
         return {"size": 6}  # embedding dimension
 
 
@@ -20,5 +22,5 @@ def embeddings_class(self) -> type[Embeddings]:
         return DeterministicFakeEmbedding
 
     @property
-    def embedding_model_params(self) -> dict:
+    def embedding_model_params(self) -> dict[str, Any]:
         return {"size": 6}

From 90619fdb26d1d9992f30490b3c419a08725a35c5 Mon Sep 17 00:00:00 2001
From: Sydney Runkle <sydneymarierunkle@gmail.com>
Date: Fri, 12 Dec 2025 14:27:56 -0500
Subject: [PATCH 2/2] patch

---
 libs/standard-tests/langchain_tests/conftest.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/standard-tests/langchain_tests/conftest.py b/libs/standard-tests/langchain_tests/conftest.py
index ceddf6a8b4580..96ff7bf741e84 100644
--- a/libs/standard-tests/langchain_tests/conftest.py
+++ b/libs/standard-tests/langchain_tests/conftest.py
@@ -122,6 +122,6 @@ def _base_vcr_config() -> dict[str, Any]:
 
 
 @pytest.fixture(scope="session")
-def vcr_config() -> dict:
+def vcr_config() -> dict[str, Any]:
     """VCR config fixture."""
     return base_vcr_config()