standard-tests[patch]: Update chat model standard tests (#22378)

- Refactor standard test classes to make them easier to configure
- Update openai to support stop_sequences init param
- Update groq to support stop_sequences init param
- Update fireworks to support max_retries init param
- Update ChatModel.bind_tools to type tool_choice
- Update groq to handle tool_choice="any". **this may be controversial**

---------

Co-authored-by: Chester Curme <chester.curme@gmail.com>

libs/partners/openai/tests/unit_tests/chat_models/test_azure_standard.py

@@ -2,23 +2,31 @@
 
 from typing import Type
 
-import pytest
 from langchain_core.language_models import BaseChatModel
+from langchain_core.runnables import RunnableBinding
 from langchain_standard_tests.unit_tests import ChatModelUnitTests
+from langchain_standard_tests.unit_tests.chat_models import Person, my_adder_tool
 
 from langchain_openai import AzureChatOpenAI
 
 
 class TestOpenAIStandard(ChatModelUnitTests):
-    @pytest.fixture
+    @property
     def chat_model_class(self) -> Type[BaseChatModel]:
         return AzureChatOpenAI
 
-    @pytest.fixture
+    @property
     def chat_model_params(self) -> dict:
         return {
             "deployment_name": "test",
             "openai_api_version": "2021-10-01",
             "azure_endpoint": "https://test.azure.com",
-            "openai_api_key": "test",
         }
+
+    def test_bind_tool_pydantic(self, model: BaseChatModel) -> None:
+        """Does not currently support tool_choice='any'."""
+        if not self.has_tool_calling:
+            return
+
+        tool_model = model.bind_tools([Person, Person.schema(), my_adder_tool])
+        assert isinstance(tool_model, RunnableBinding)

libs/partners/openai/tests/unit_tests/chat_models/test_base_standard.py

@@ -2,7 +2,6 @@
 
 from typing import Type
 
-import pytest
 from langchain_core.language_models import BaseChatModel
 from langchain_standard_tests.unit_tests import ChatModelUnitTests
 
@@ -10,6 +9,6 @@ from langchain_openai import ChatOpenAI
 
 
 class TestOpenAIStandard(ChatModelUnitTests):
-    @pytest.fixture
+    @property
     def chat_model_class(self) -> Type[BaseChatModel]:
         return ChatOpenAI