fix(perf): optimize some hot paths

Author: stainless-app[bot]

src/lumaai/_utils/_transform.py

@@ -5,14 +5,15 @@
 import pathlib
 from typing import Any, Mapping, TypeVar, cast
 from datetime import date, datetime
-from typing_extensions import Literal, get_args, override, get_type_hints
+from typing_extensions import Literal, get_args, override, get_type_hints as _get_type_hints
 
 import anyio
 import pydantic
 
 from ._utils import (
     is_list,
     is_given,
+    lru_cache,
     is_mapping,
     is_iterable,
 )
@@ -109,6 +110,7 @@ class Params(TypedDict, total=False):
     return cast(_T, transformed)
 
 
+@lru_cache(maxsize=8096)
 def _get_annotated_type(type_: type) -> type | None:
     """If the given type is an `Annotated` type then it is returned, if not `None` is returned.
 
@@ -433,3 +435,13 @@ async def _async_transform_typeddict(
         else:
             result[_maybe_transform_key(key, type_)] = await _async_transform_recursive(value, annotation=type_)
     return result
+
+
+@lru_cache(maxsize=8096)
+def get_type_hints(
+    obj: Any,
+    globalns: dict[str, Any] | None = None,
+    localns: Mapping[str, Any] | None = None,
+    include_extras: bool = False,
+) -> dict[str, Any]:
+    return _get_type_hints(obj, globalns=globalns, localns=localns, include_extras=include_extras)

src/lumaai/_utils/_typing.py

@@ -13,6 +13,7 @@
     get_origin,
 )
 
+from ._utils import lru_cache
 from .._types import InheritsGeneric
 from .._compat import is_union as _is_union
 
@@ -66,6 +67,7 @@ def is_type_alias_type(tp: Any, /) -> TypeIs[typing_extensions.TypeAliasType]:
 
 
 # Extracts T from Annotated[T, ...] or from Required[Annotated[T, ...]]
+@lru_cache(maxsize=8096)
 def strip_annotated_type(typ: type) -> type:
     if is_required_type(typ) or is_annotated_type(typ):
         return strip_annotated_type(cast(type, get_args(typ)[0]))