langchain[patch], core[patch]: Make common utils public (#13932)

- rename `langchain_core.chat_models.base._generate_from_stream` -> `generate_from_stream`
- rename `langchain_core.chat_models.base._agenerate_from_stream` -> `agenerate_from_stream`
- export `langchain_core.utils.utils.build_extra_kwargs` from `langchain_core.utils`

libs/core/langchain_core/language_models/chat_models.py

@@ -55,7 +55,7 @@ def _get_verbosity() -> bool:
     return get_verbose()
 
 
-def _generate_from_stream(stream: Iterator[ChatGenerationChunk]) -> ChatResult:
+def generate_from_stream(stream: Iterator[ChatGenerationChunk]) -> ChatResult:
     generation: Optional[ChatGenerationChunk] = None
     for chunk in stream:
         if generation is None:
@@ -66,7 +66,7 @@ def _generate_from_stream(stream: Iterator[ChatGenerationChunk]) -> ChatResult:
     return ChatResult(generations=[generation])
 
 
-async def _agenerate_from_stream(
+async def agenerate_from_stream(
     stream: AsyncIterator[ChatGenerationChunk],
 ) -> ChatResult:
     generation: Optional[ChatGenerationChunk] = None

libs/core/langchain_core/utils/__init__.py

@@ -13,6 +13,7 @@ from langchain_core.utils.input import (
 )
 from langchain_core.utils.loading import try_load_from_hub
 from langchain_core.utils.utils import (
+    build_extra_kwargs,
     check_package_version,
     convert_to_secret_str,
     get_pydantic_field_names,
@@ -37,4 +38,5 @@ __all__ = [
     "raise_for_status_with_text",
     "xor_args",
     "try_load_from_hub",
+    "build_extra_kwargs",
 ]

libs/core/tests/unit_tests/utils/test_imports.py

@@ -15,6 +15,7 @@ EXPECTED_ALL = [
     "raise_for_status_with_text",
     "xor_args",
     "try_load_from_hub",
+    "build_extra_kwargs",
 ]