diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c523ce1..c3c9552 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.8.0"
+  ".": "1.9.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 183571e..0e65bf2 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 29
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/arcade-ai%2Farcade-engine-e67b8e285739a9a3998fbe39b5eb97fac5bb8f571781d4f5d242b3824d4d743e.yml
-openapi_spec_hash: bd661c93deb864b606bfc2d2ee110a1f
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/arcade-ai%2Farcade-engine-b1433c9d499d0eee441fab12578e7c11fe2f67bbf6f9fd5f894086b21f41dd30.yml
+openapi_spec_hash: 95d25454996689921708f43481d6cdcc
 config_hash: 00b1a3fd1b197bd253cdd6b7bc360c02
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 56599e3..037bd72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## 1.9.0 (2025-09-20)
+
+Full Changelog: [v1.8.0...v1.9.0](https://github.com/ArcadeAI/arcade-py/compare/v1.8.0...v1.9.0)
+
+### Features
+
+* **api:** api update ([eebc9ed](https://github.com/ArcadeAI/arcade-py/commit/eebc9edf476f0838f584f6d356fdaee8d8d79c76))
+
+
+### Chores
+
+* do not install brew dependencies in ./scripts/bootstrap by default ([927371b](https://github.com/ArcadeAI/arcade-py/commit/927371b47365c528be87e5dce549c0363d9b7a11))
+* **internal:** update pydantic dependency ([450a852](https://github.com/ArcadeAI/arcade-py/commit/450a852ffa8000a2c7e1d4d294a925366301c3fd))
+* **types:** change optional parameter type from NotGiven to Omit ([484c472](https://github.com/ArcadeAI/arcade-py/commit/484c472696a53d5b7ea9c14d9a826bc6701f0704))
+
 ## 1.8.0 (2025-09-11)
 
 Full Changelog: [v1.7.0...v1.8.0](https://github.com/ArcadeAI/arcade-py/compare/v1.7.0...v1.8.0)
diff --git a/pyproject.toml b/pyproject.toml
index f0395f7..b313cd2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "arcadepy"
-version = "1.8.0"
+version = "1.9.0"
 description = "The official Python library for the Arcade API"
 dynamic = ["readme"]
 license = "MIT"
diff --git a/requirements-dev.lock b/requirements-dev.lock
index cdc05b4..d154c5c 100644
--- a/requirements-dev.lock
+++ b/requirements-dev.lock
@@ -88,9 +88,9 @@ pluggy==1.5.0
 propcache==0.3.1
     # via aiohttp
     # via yarl
-pydantic==2.10.3
+pydantic==2.11.9
     # via arcadepy
-pydantic-core==2.27.1
+pydantic-core==2.33.2
     # via pydantic
 pygments==2.18.0
     # via rich
@@ -126,6 +126,9 @@ typing-extensions==4.12.2
     # via pydantic
     # via pydantic-core
     # via pyright
+    # via typing-inspection
+typing-inspection==0.4.1
+    # via pydantic
 virtualenv==20.24.5
     # via nox
 yarl==1.20.0
diff --git a/requirements.lock b/requirements.lock
index 453acf2..75fa625 100644
--- a/requirements.lock
+++ b/requirements.lock
@@ -55,9 +55,9 @@ multidict==6.4.4
 propcache==0.3.1
     # via aiohttp
     # via yarl
-pydantic==2.10.3
+pydantic==2.11.9
     # via arcadepy
-pydantic-core==2.27.1
+pydantic-core==2.33.2
     # via pydantic
 sniffio==1.3.0
     # via anyio
@@ -68,5 +68,8 @@ typing-extensions==4.12.2
     # via multidict
     # via pydantic
     # via pydantic-core
+    # via typing-inspection
+typing-inspection==0.4.1
+    # via pydantic
 yarl==1.20.0
     # via aiohttp
diff --git a/scripts/bootstrap b/scripts/bootstrap
index e84fe62..b430fee 100755
--- a/scripts/bootstrap
+++ b/scripts/bootstrap
@@ -4,10 +4,18 @@ set -e
 
 cd "$(dirname "$0")/.."
 
-if ! command -v rye >/dev/null 2>&1 && [ -f "Brewfile" ] && [ "$(uname -s)" = "Darwin" ]; then
+if [ -f "Brewfile" ] && [ "$(uname -s)" = "Darwin" ] && [ "$SKIP_BREW" != "1" ] && [ -t 0 ]; then
   brew bundle check >/dev/null 2>&1 || {
-    echo "==> Installing Homebrew dependencies…"
-    brew bundle
+    echo -n "==> Install Homebrew dependencies? (y/N): "
+    read -r response
+    case "$response" in
+      [yY][eE][sS]|[yY])
+        brew bundle
+        ;;
+      *)
+        ;;
+    esac
+    echo
   }
 fi
 
diff --git a/src/arcadepy/__init__.py b/src/arcadepy/__init__.py
index fe2533d..a66e928 100644
--- a/src/arcadepy/__init__.py
+++ b/src/arcadepy/__init__.py
@@ -3,7 +3,7 @@
 import typing as _t
 
 from . import types
-from ._types import NOT_GIVEN, Omit, NoneType, NotGiven, Transport, ProxiesTypes
+from ._types import NOT_GIVEN, Omit, NoneType, NotGiven, Transport, ProxiesTypes, omit, not_given
 from ._utils import file_from_path
 from ._client import Arcade, Client, Stream, Timeout, Transport, AsyncArcade, AsyncClient, AsyncStream, RequestOptions
 from ._models import BaseModel
@@ -38,7 +38,9 @@
     "ProxiesTypes",
     "NotGiven",
     "NOT_GIVEN",
+    "not_given",
     "Omit",
+    "omit",
     "ArcadeError",
     "APIError",
     "APIStatusError",
diff --git a/src/arcadepy/_base_client.py b/src/arcadepy/_base_client.py
index 0d9b8ac..57cf33c 100644
--- a/src/arcadepy/_base_client.py
+++ b/src/arcadepy/_base_client.py
@@ -42,7 +42,6 @@
 from ._qs import Querystring
 from ._files import to_httpx_files, async_to_httpx_files
 from ._types import (
-    NOT_GIVEN,
     Body,
     Omit,
     Query,
@@ -57,6 +56,7 @@
     RequestOptions,
     HttpxRequestFiles,
     ModelBuilderProtocol,
+    not_given,
 )
 from ._utils import is_dict, is_list, asyncify, is_given, lru_cache, is_mapping
 from ._compat import PYDANTIC_V1, model_copy, model_dump
@@ -145,9 +145,9 @@ def __init__(
     def __init__(
         self,
         *,
-        url: URL | NotGiven = NOT_GIVEN,
-        json: Body | NotGiven = NOT_GIVEN,
-        params: Query | NotGiven = NOT_GIVEN,
+        url: URL | NotGiven = not_given,
+        json: Body | NotGiven = not_given,
+        params: Query | NotGiven = not_given,
     ) -> None:
         self.url = url
         self.json = json
@@ -595,7 +595,7 @@ def _maybe_override_cast_to(self, cast_to: type[ResponseT], options: FinalReques
         # we internally support defining a temporary header to override the
         # default `cast_to` type for use with `.with_raw_response` and `.with_streaming_response`
         # see _response.py for implementation details
-        override_cast_to = headers.pop(OVERRIDE_CAST_TO_HEADER, NOT_GIVEN)
+        override_cast_to = headers.pop(OVERRIDE_CAST_TO_HEADER, not_given)
         if is_given(override_cast_to):
             options.headers = headers
             return cast(Type[ResponseT], override_cast_to)
@@ -825,7 +825,7 @@ def __init__(
         version: str,
         base_url: str | URL,
         max_retries: int = DEFAULT_MAX_RETRIES,
-        timeout: float | Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | Timeout | None | NotGiven = not_given,
         http_client: httpx.Client | None = None,
         custom_headers: Mapping[str, str] | None = None,
         custom_query: Mapping[str, object] | None = None,
@@ -1356,7 +1356,7 @@ def __init__(
         base_url: str | URL,
         _strict_response_validation: bool,
         max_retries: int = DEFAULT_MAX_RETRIES,
-        timeout: float | Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | Timeout | None | NotGiven = not_given,
         http_client: httpx.AsyncClient | None = None,
         custom_headers: Mapping[str, str] | None = None,
         custom_query: Mapping[str, object] | None = None,
@@ -1818,8 +1818,8 @@ def make_request_options(
     extra_query: Query | None = None,
     extra_body: Body | None = None,
     idempotency_key: str | None = None,
-    timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
-    post_parser: PostParser | NotGiven = NOT_GIVEN,
+    timeout: float | httpx.Timeout | None | NotGiven = not_given,
+    post_parser: PostParser | NotGiven = not_given,
 ) -> RequestOptions:
     """Create a dict of type RequestOptions without keys of NotGiven values."""
     options: RequestOptions = {}
diff --git a/src/arcadepy/_client.py b/src/arcadepy/_client.py
index 76bf3a2..7ad9056 100644
--- a/src/arcadepy/_client.py
+++ b/src/arcadepy/_client.py
@@ -3,7 +3,7 @@
 from __future__ import annotations
 
 import os
-from typing import Any, Union, Mapping
+from typing import Any, Mapping
 from typing_extensions import Self, override
 
 import httpx
@@ -11,13 +11,13 @@
 from . import _exceptions
 from ._qs import Querystring
 from ._types import (
-    NOT_GIVEN,
     Omit,
     Timeout,
     NotGiven,
     Transport,
     ProxiesTypes,
     RequestOptions,
+    not_given,
 )
 from ._utils import is_given, get_async_library
 from ._version import __version__
@@ -54,7 +54,7 @@ def __init__(
         *,
         api_key: str | None = None,
         base_url: str | httpx.URL | None = None,
-        timeout: Union[float, Timeout, None, NotGiven] = NOT_GIVEN,
+        timeout: float | Timeout | None | NotGiven = not_given,
         max_retries: int = DEFAULT_MAX_RETRIES,
         default_headers: Mapping[str, str] | None = None,
         default_query: Mapping[str, object] | None = None,
@@ -134,9 +134,9 @@ def copy(
         *,
         api_key: str | None = None,
         base_url: str | httpx.URL | None = None,
-        timeout: float | Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | Timeout | None | NotGiven = not_given,
         http_client: httpx.Client | None = None,
-        max_retries: int | NotGiven = NOT_GIVEN,
+        max_retries: int | NotGiven = not_given,
         default_headers: Mapping[str, str] | None = None,
         set_default_headers: Mapping[str, str] | None = None,
         default_query: Mapping[str, object] | None = None,
@@ -232,7 +232,7 @@ def __init__(
         *,
         api_key: str | None = None,
         base_url: str | httpx.URL | None = None,
-        timeout: Union[float, Timeout, None, NotGiven] = NOT_GIVEN,
+        timeout: float | Timeout | None | NotGiven = not_given,
         max_retries: int = DEFAULT_MAX_RETRIES,
         default_headers: Mapping[str, str] | None = None,
         default_query: Mapping[str, object] | None = None,
@@ -312,9 +312,9 @@ def copy(
         *,
         api_key: str | None = None,
         base_url: str | httpx.URL | None = None,
-        timeout: float | Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | Timeout | None | NotGiven = not_given,
         http_client: httpx.AsyncClient | None = None,
-        max_retries: int | NotGiven = NOT_GIVEN,
+        max_retries: int | NotGiven = not_given,
         default_headers: Mapping[str, str] | None = None,
         set_default_headers: Mapping[str, str] | None = None,
         default_query: Mapping[str, object] | None = None,
diff --git a/src/arcadepy/_models.py b/src/arcadepy/_models.py
index 3a6017e..6a3cd1d 100644
--- a/src/arcadepy/_models.py
+++ b/src/arcadepy/_models.py
@@ -256,7 +256,7 @@ def model_dump(
             mode: Literal["json", "python"] | str = "python",
             include: IncEx | None = None,
             exclude: IncEx | None = None,
-            by_alias: bool = False,
+            by_alias: bool | None = None,
             exclude_unset: bool = False,
             exclude_defaults: bool = False,
             exclude_none: bool = False,
@@ -264,6 +264,7 @@ def model_dump(
             warnings: bool | Literal["none", "warn", "error"] = True,
             context: dict[str, Any] | None = None,
             serialize_as_any: bool = False,
+            fallback: Callable[[Any], Any] | None = None,
         ) -> dict[str, Any]:
             """Usage docs: https://docs.pydantic.dev/2.4/concepts/serialization/#modelmodel_dump
 
@@ -295,10 +296,12 @@ def model_dump(
                 raise ValueError("context is only supported in Pydantic v2")
             if serialize_as_any != False:
                 raise ValueError("serialize_as_any is only supported in Pydantic v2")
+            if fallback is not None:
+                raise ValueError("fallback is only supported in Pydantic v2")
             dumped = super().dict(  # pyright: ignore[reportDeprecated]
                 include=include,
                 exclude=exclude,
-                by_alias=by_alias,
+                by_alias=by_alias if by_alias is not None else False,
                 exclude_unset=exclude_unset,
                 exclude_defaults=exclude_defaults,
                 exclude_none=exclude_none,
@@ -313,13 +316,14 @@ def model_dump_json(
             indent: int | None = None,
             include: IncEx | None = None,
             exclude: IncEx | None = None,
-            by_alias: bool = False,
+            by_alias: bool | None = None,
             exclude_unset: bool = False,
             exclude_defaults: bool = False,
             exclude_none: bool = False,
             round_trip: bool = False,
             warnings: bool | Literal["none", "warn", "error"] = True,
             context: dict[str, Any] | None = None,
+            fallback: Callable[[Any], Any] | None = None,
             serialize_as_any: bool = False,
         ) -> str:
             """Usage docs: https://docs.pydantic.dev/2.4/concepts/serialization/#modelmodel_dump_json
@@ -348,11 +352,13 @@ def model_dump_json(
                 raise ValueError("context is only supported in Pydantic v2")
             if serialize_as_any != False:
                 raise ValueError("serialize_as_any is only supported in Pydantic v2")
+            if fallback is not None:
+                raise ValueError("fallback is only supported in Pydantic v2")
             return super().json(  # type: ignore[reportDeprecated]
                 indent=indent,
                 include=include,
                 exclude=exclude,
-                by_alias=by_alias,
+                by_alias=by_alias if by_alias is not None else False,
                 exclude_unset=exclude_unset,
                 exclude_defaults=exclude_defaults,
                 exclude_none=exclude_none,
diff --git a/src/arcadepy/_qs.py b/src/arcadepy/_qs.py
index 274320c..ada6fd3 100644
--- a/src/arcadepy/_qs.py
+++ b/src/arcadepy/_qs.py
@@ -4,7 +4,7 @@
 from urllib.parse import parse_qs, urlencode
 from typing_extensions import Literal, get_args
 
-from ._types import NOT_GIVEN, NotGiven, NotGivenOr
+from ._types import NotGiven, not_given
 from ._utils import flatten
 
 _T = TypeVar("_T")
@@ -41,8 +41,8 @@ def stringify(
         self,
         params: Params,
         *,
-        array_format: NotGivenOr[ArrayFormat] = NOT_GIVEN,
-        nested_format: NotGivenOr[NestedFormat] = NOT_GIVEN,
+        array_format: ArrayFormat | NotGiven = not_given,
+        nested_format: NestedFormat | NotGiven = not_given,
     ) -> str:
         return urlencode(
             self.stringify_items(
@@ -56,8 +56,8 @@ def stringify_items(
         self,
         params: Params,
         *,
-        array_format: NotGivenOr[ArrayFormat] = NOT_GIVEN,
-        nested_format: NotGivenOr[NestedFormat] = NOT_GIVEN,
+        array_format: ArrayFormat | NotGiven = not_given,
+        nested_format: NestedFormat | NotGiven = not_given,
     ) -> list[tuple[str, str]]:
         opts = Options(
             qs=self,
@@ -143,8 +143,8 @@ def __init__(
         self,
         qs: Querystring = _qs,
         *,
-        array_format: NotGivenOr[ArrayFormat] = NOT_GIVEN,
-        nested_format: NotGivenOr[NestedFormat] = NOT_GIVEN,
+        array_format: ArrayFormat | NotGiven = not_given,
+        nested_format: NestedFormat | NotGiven = not_given,
     ) -> None:
         self.array_format = qs.array_format if isinstance(array_format, NotGiven) else array_format
         self.nested_format = qs.nested_format if isinstance(nested_format, NotGiven) else nested_format
diff --git a/src/arcadepy/_types.py b/src/arcadepy/_types.py
index c7ceaa8..39e9386 100644
--- a/src/arcadepy/_types.py
+++ b/src/arcadepy/_types.py
@@ -117,18 +117,21 @@ class RequestOptions(TypedDict, total=False):
 # Sentinel class used until PEP 0661 is accepted
 class NotGiven:
     """
-    A sentinel singleton class used to distinguish omitted keyword arguments
-    from those passed in with the value None (which may have different behavior).
+    For parameters with a meaningful None value, we need to distinguish between
+    the user explicitly passing None, and the user not passing the parameter at
+    all.
+
+    User code shouldn't need to use not_given directly.
 
     For example:
 
     ```py
-    def get(timeout: Union[int, NotGiven, None] = NotGiven()) -> Response: ...
+    def create(timeout: Timeout | None | NotGiven = not_given): ...
 
 
-    get(timeout=1)  # 1s timeout
-    get(timeout=None)  # No timeout
-    get()  # Default timeout behavior, which may not be statically known at the method definition.
+    create(timeout=1)  # 1s timeout
+    create(timeout=None)  # No timeout
+    create()  # Default timeout behavior
     ```
     """
 
@@ -140,13 +143,14 @@ def __repr__(self) -> str:
         return "NOT_GIVEN"
 
 
-NotGivenOr = Union[_T, NotGiven]
+not_given = NotGiven()
+# for backwards compatibility:
 NOT_GIVEN = NotGiven()
 
 
 class Omit:
-    """In certain situations you need to be able to represent a case where a default value has
-    to be explicitly removed and `None` is not an appropriate substitute, for example:
+    """
+    To explicitly omit something from being sent in a request, use `omit`.
 
     ```py
     # as the default `Content-Type` header is `application/json` that will be sent
@@ -156,8 +160,8 @@ class Omit:
     # to look something like: 'multipart/form-data; boundary=0d8382fcf5f8c3be01ca2e11002d2983'
     client.post(..., headers={"Content-Type": "multipart/form-data"})
 
-    # instead you can remove the default `application/json` header by passing Omit
-    client.post(..., headers={"Content-Type": Omit()})
+    # instead you can remove the default `application/json` header by passing omit
+    client.post(..., headers={"Content-Type": omit})
     ```
     """
 
@@ -165,6 +169,9 @@ def __bool__(self) -> Literal[False]:
         return False
 
 
+omit = Omit()
+
+
 @runtime_checkable
 class ModelBuilderProtocol(Protocol):
     @classmethod
diff --git a/src/arcadepy/_utils/_transform.py b/src/arcadepy/_utils/_transform.py
index c19124f..5207549 100644
--- a/src/arcadepy/_utils/_transform.py
+++ b/src/arcadepy/_utils/_transform.py
@@ -268,7 +268,7 @@ def _transform_typeddict(
     annotations = get_type_hints(expected_type, include_extras=True)
     for key, value in data.items():
         if not is_given(value):
-            # we don't need to include `NotGiven` values here as they'll
+            # we don't need to include omitted values here as they'll
             # be stripped out before the request is sent anyway
             continue
 
@@ -434,7 +434,7 @@ async def _async_transform_typeddict(
     annotations = get_type_hints(expected_type, include_extras=True)
     for key, value in data.items():
         if not is_given(value):
-            # we don't need to include `NotGiven` values here as they'll
+            # we don't need to include omitted values here as they'll
             # be stripped out before the request is sent anyway
             continue
 
diff --git a/src/arcadepy/_utils/_utils.py b/src/arcadepy/_utils/_utils.py
index f081859..50d5926 100644
--- a/src/arcadepy/_utils/_utils.py
+++ b/src/arcadepy/_utils/_utils.py
@@ -21,7 +21,7 @@
 
 import sniffio
 
-from .._types import NotGiven, FileTypes, NotGivenOr, HeadersLike
+from .._types import Omit, NotGiven, FileTypes, HeadersLike
 
 _T = TypeVar("_T")
 _TupleT = TypeVar("_TupleT", bound=Tuple[object, ...])
@@ -63,7 +63,7 @@ def _extract_items(
     try:
         key = path[index]
     except IndexError:
-        if isinstance(obj, NotGiven):
+        if not is_given(obj):
             # no value was provided - we can safely ignore
             return []
 
@@ -126,8 +126,8 @@ def _extract_items(
     return []
 
 
-def is_given(obj: NotGivenOr[_T]) -> TypeGuard[_T]:
-    return not isinstance(obj, NotGiven)
+def is_given(obj: _T | NotGiven | Omit) -> TypeGuard[_T]:
+    return not isinstance(obj, NotGiven) and not isinstance(obj, Omit)
 
 
 # Type safe methods for narrowing types with TypeVars.
diff --git a/src/arcadepy/_version.py b/src/arcadepy/_version.py
index 39976b0..285daf2 100644
--- a/src/arcadepy/_version.py
+++ b/src/arcadepy/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "arcadepy"
-__version__ = "1.8.0"  # x-release-please-version
+__version__ = "1.9.0"  # x-release-please-version
diff --git a/src/arcadepy/resources/admin/auth_providers.py b/src/arcadepy/resources/admin/auth_providers.py
index 076fd7e..4378409 100644
--- a/src/arcadepy/resources/admin/auth_providers.py
+++ b/src/arcadepy/resources/admin/auth_providers.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from ..._types import NOT_GIVEN, Body, Query, Headers, NotGiven
+from ..._types import Body, Omit, Query, Headers, NotGiven, omit, not_given
 from ..._utils import maybe_transform, async_maybe_transform
 from ..._compat import cached_property
 from ..._resource import SyncAPIResource, AsyncAPIResource
@@ -46,18 +46,18 @@ def create(
         self,
         *,
         id: str,
-        description: str | NotGiven = NOT_GIVEN,
-        external_id: str | NotGiven = NOT_GIVEN,
-        oauth2: auth_provider_create_params.Oauth2 | NotGiven = NOT_GIVEN,
-        provider_id: str | NotGiven = NOT_GIVEN,
-        status: str | NotGiven = NOT_GIVEN,
-        type: str | NotGiven = NOT_GIVEN,
+        description: str | Omit = omit,
+        external_id: str | Omit = omit,
+        oauth2: auth_provider_create_params.Oauth2 | Omit = omit,
+        provider_id: str | Omit = omit,
+        status: str | Omit = omit,
+        type: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Create a new auth provider
@@ -101,7 +101,7 @@ def list(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderListResponse:
         """List a page of auth providers that are available to the caller"""
         return self._get(
@@ -121,7 +121,7 @@ def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Delete a specific auth provider
@@ -154,7 +154,7 @@ def get(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Get the details of a specific auth provider
@@ -182,18 +182,18 @@ def patch(
         self,
         path_id: str,
         *,
-        body_id: str | NotGiven = NOT_GIVEN,
-        description: str | NotGiven = NOT_GIVEN,
-        oauth2: auth_provider_patch_params.Oauth2 | NotGiven = NOT_GIVEN,
-        provider_id: str | NotGiven = NOT_GIVEN,
-        status: str | NotGiven = NOT_GIVEN,
-        type: str | NotGiven = NOT_GIVEN,
+        body_id: str | Omit = omit,
+        description: str | Omit = omit,
+        oauth2: auth_provider_patch_params.Oauth2 | Omit = omit,
+        provider_id: str | Omit = omit,
+        status: str | Omit = omit,
+        type: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Patch an existing auth provider
@@ -253,18 +253,18 @@ async def create(
         self,
         *,
         id: str,
-        description: str | NotGiven = NOT_GIVEN,
-        external_id: str | NotGiven = NOT_GIVEN,
-        oauth2: auth_provider_create_params.Oauth2 | NotGiven = NOT_GIVEN,
-        provider_id: str | NotGiven = NOT_GIVEN,
-        status: str | NotGiven = NOT_GIVEN,
-        type: str | NotGiven = NOT_GIVEN,
+        description: str | Omit = omit,
+        external_id: str | Omit = omit,
+        oauth2: auth_provider_create_params.Oauth2 | Omit = omit,
+        provider_id: str | Omit = omit,
+        status: str | Omit = omit,
+        type: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Create a new auth provider
@@ -308,7 +308,7 @@ async def list(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderListResponse:
         """List a page of auth providers that are available to the caller"""
         return await self._get(
@@ -328,7 +328,7 @@ async def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Delete a specific auth provider
@@ -361,7 +361,7 @@ async def get(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Get the details of a specific auth provider
@@ -389,18 +389,18 @@ async def patch(
         self,
         path_id: str,
         *,
-        body_id: str | NotGiven = NOT_GIVEN,
-        description: str | NotGiven = NOT_GIVEN,
-        oauth2: auth_provider_patch_params.Oauth2 | NotGiven = NOT_GIVEN,
-        provider_id: str | NotGiven = NOT_GIVEN,
-        status: str | NotGiven = NOT_GIVEN,
-        type: str | NotGiven = NOT_GIVEN,
+        body_id: str | Omit = omit,
+        description: str | Omit = omit,
+        oauth2: auth_provider_patch_params.Oauth2 | Omit = omit,
+        provider_id: str | Omit = omit,
+        status: str | Omit = omit,
+        type: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthProviderResponse:
         """
         Patch an existing auth provider
diff --git a/src/arcadepy/resources/admin/secrets.py b/src/arcadepy/resources/admin/secrets.py
index 88cecaa..ac839d9 100644
--- a/src/arcadepy/resources/admin/secrets.py
+++ b/src/arcadepy/resources/admin/secrets.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from ..._types import NOT_GIVEN, Body, Query, Headers, NoneType, NotGiven
+from ..._types import Body, Query, Headers, NoneType, NotGiven, not_given
 from ..._compat import cached_property
 from ..._resource import SyncAPIResource, AsyncAPIResource
 from ..._response import (
@@ -47,7 +47,7 @@ def list(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SecretListResponse:
         """List all secrets that are visible to the caller"""
         return self._get(
@@ -67,7 +67,7 @@ def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> None:
         """
         Delete a secret by its ID
@@ -121,7 +121,7 @@ async def list(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SecretListResponse:
         """List all secrets that are visible to the caller"""
         return await self._get(
@@ -141,7 +141,7 @@ async def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> None:
         """
         Delete a secret by its ID
diff --git a/src/arcadepy/resources/admin/user_connections.py b/src/arcadepy/resources/admin/user_connections.py
index 9a5e164..dc9b9b0 100644
--- a/src/arcadepy/resources/admin/user_connections.py
+++ b/src/arcadepy/resources/admin/user_connections.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from ..._types import NOT_GIVEN, Body, Query, Headers, NoneType, NotGiven
+from ..._types import Body, Omit, Query, Headers, NoneType, NotGiven, omit, not_given
 from ..._utils import maybe_transform
 from ..._compat import cached_property
 from ..._resource import SyncAPIResource, AsyncAPIResource
@@ -45,16 +45,16 @@ def with_streaming_response(self) -> UserConnectionsResourceWithStreamingRespons
     def list(
         self,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
-        provider: user_connection_list_params.Provider | NotGiven = NOT_GIVEN,
-        user: user_connection_list_params.User | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
+        provider: user_connection_list_params.Provider | Omit = omit,
+        user: user_connection_list_params.User | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SyncOffsetPage[UserConnectionResponse]:
         """
         List all auth connections
@@ -102,7 +102,7 @@ def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> None:
         """
         Delete a user/auth provider connection
@@ -151,16 +151,16 @@ def with_streaming_response(self) -> AsyncUserConnectionsResourceWithStreamingRe
     def list(
         self,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
-        provider: user_connection_list_params.Provider | NotGiven = NOT_GIVEN,
-        user: user_connection_list_params.User | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
+        provider: user_connection_list_params.Provider | Omit = omit,
+        user: user_connection_list_params.User | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AsyncPaginator[UserConnectionResponse, AsyncOffsetPage[UserConnectionResponse]]:
         """
         List all auth connections
@@ -208,7 +208,7 @@ async def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> None:
         """
         Delete a user/auth provider connection
diff --git a/src/arcadepy/resources/auth.py b/src/arcadepy/resources/auth.py
index fd7afaf..b3b794e 100644
--- a/src/arcadepy/resources/auth.py
+++ b/src/arcadepy/resources/auth.py
@@ -5,7 +5,7 @@
 import httpx
 
 from ..types import auth_status_params, auth_authorize_params, auth_confirm_user_params
-from .._types import NOT_GIVEN, Body, Query, Headers, NotGiven
+from .._types import Body, Omit, Query, Headers, NotGiven, omit, not_given
 from .._utils import maybe_transform, async_maybe_transform
 from .._compat import cached_property
 from .._resource import SyncAPIResource, AsyncAPIResource
@@ -49,13 +49,13 @@ def authorize(
         *,
         auth_requirement: auth_authorize_params.AuthRequirement,
         user_id: str,
-        next_uri: str | NotGiven = NOT_GIVEN,
+        next_uri: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthorizationResponse:
         """
         Starts the authorization process for given authorization requirements
@@ -128,7 +128,7 @@ def confirm_user(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ConfirmUserResponse:
         """
         Confirms a user's details during an authorization flow
@@ -161,13 +161,13 @@ def status(
         self,
         *,
         id: str,
-        wait: int | NotGiven = NOT_GIVEN,
+        wait: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthorizationResponse:
         """Checks the status of an ongoing authorization process for a specific tool.
 
@@ -259,13 +259,13 @@ async def authorize(
         *,
         auth_requirement: auth_authorize_params.AuthRequirement,
         user_id: str,
-        next_uri: str | NotGiven = NOT_GIVEN,
+        next_uri: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthorizationResponse:
         """
         Starts the authorization process for given authorization requirements
@@ -338,7 +338,7 @@ async def confirm_user(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ConfirmUserResponse:
         """
         Confirms a user's details during an authorization flow
@@ -371,13 +371,13 @@ async def status(
         self,
         *,
         id: str,
-        wait: int | NotGiven = NOT_GIVEN,
+        wait: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthorizationResponse:
         """Checks the status of an ongoing authorization process for a specific tool.
 
diff --git a/src/arcadepy/resources/chat/completions.py b/src/arcadepy/resources/chat/completions.py
index 14448ad..a875aaf 100644
--- a/src/arcadepy/resources/chat/completions.py
+++ b/src/arcadepy/resources/chat/completions.py
@@ -6,7 +6,7 @@
 
 import httpx
 
-from ..._types import NOT_GIVEN, Body, Query, Headers, NotGiven, SequenceNotStr
+from ..._types import Body, Omit, Query, Headers, NotGiven, SequenceNotStr, omit, not_given
 from ..._utils import maybe_transform, async_maybe_transform
 from ..._compat import cached_property
 from ..._resource import SyncAPIResource, AsyncAPIResource
@@ -47,32 +47,32 @@ def with_streaming_response(self) -> CompletionsResourceWithStreamingResponse:
     def create(
         self,
         *,
-        frequency_penalty: float | NotGiven = NOT_GIVEN,
-        logit_bias: Dict[str, int] | NotGiven = NOT_GIVEN,
-        logprobs: bool | NotGiven = NOT_GIVEN,
-        max_tokens: int | NotGiven = NOT_GIVEN,
-        messages: Iterable[ChatMessageParam] | NotGiven = NOT_GIVEN,
-        model: str | NotGiven = NOT_GIVEN,
-        n: int | NotGiven = NOT_GIVEN,
-        parallel_tool_calls: bool | NotGiven = NOT_GIVEN,
-        presence_penalty: float | NotGiven = NOT_GIVEN,
-        response_format: completion_create_params.ResponseFormat | NotGiven = NOT_GIVEN,
-        seed: int | NotGiven = NOT_GIVEN,
-        stop: SequenceNotStr[str] | NotGiven = NOT_GIVEN,
-        stream: bool | NotGiven = NOT_GIVEN,
-        stream_options: completion_create_params.StreamOptions | NotGiven = NOT_GIVEN,
-        temperature: float | NotGiven = NOT_GIVEN,
-        tool_choice: object | NotGiven = NOT_GIVEN,
-        tools: object | NotGiven = NOT_GIVEN,
-        top_logprobs: int | NotGiven = NOT_GIVEN,
-        top_p: float | NotGiven = NOT_GIVEN,
-        user: str | NotGiven = NOT_GIVEN,
+        frequency_penalty: float | Omit = omit,
+        logit_bias: Dict[str, int] | Omit = omit,
+        logprobs: bool | Omit = omit,
+        max_tokens: int | Omit = omit,
+        messages: Iterable[ChatMessageParam] | Omit = omit,
+        model: str | Omit = omit,
+        n: int | Omit = omit,
+        parallel_tool_calls: bool | Omit = omit,
+        presence_penalty: float | Omit = omit,
+        response_format: completion_create_params.ResponseFormat | Omit = omit,
+        seed: int | Omit = omit,
+        stop: SequenceNotStr[str] | Omit = omit,
+        stream: bool | Omit = omit,
+        stream_options: completion_create_params.StreamOptions | Omit = omit,
+        temperature: float | Omit = omit,
+        tool_choice: object | Omit = omit,
+        tools: object | Omit = omit,
+        top_logprobs: int | Omit = omit,
+        top_p: float | Omit = omit,
+        user: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ChatResponse:
         """
         Interact with language models via OpenAI's chat completions API
@@ -163,32 +163,32 @@ def with_streaming_response(self) -> AsyncCompletionsResourceWithStreamingRespon
     async def create(
         self,
         *,
-        frequency_penalty: float | NotGiven = NOT_GIVEN,
-        logit_bias: Dict[str, int] | NotGiven = NOT_GIVEN,
-        logprobs: bool | NotGiven = NOT_GIVEN,
-        max_tokens: int | NotGiven = NOT_GIVEN,
-        messages: Iterable[ChatMessageParam] | NotGiven = NOT_GIVEN,
-        model: str | NotGiven = NOT_GIVEN,
-        n: int | NotGiven = NOT_GIVEN,
-        parallel_tool_calls: bool | NotGiven = NOT_GIVEN,
-        presence_penalty: float | NotGiven = NOT_GIVEN,
-        response_format: completion_create_params.ResponseFormat | NotGiven = NOT_GIVEN,
-        seed: int | NotGiven = NOT_GIVEN,
-        stop: SequenceNotStr[str] | NotGiven = NOT_GIVEN,
-        stream: bool | NotGiven = NOT_GIVEN,
-        stream_options: completion_create_params.StreamOptions | NotGiven = NOT_GIVEN,
-        temperature: float | NotGiven = NOT_GIVEN,
-        tool_choice: object | NotGiven = NOT_GIVEN,
-        tools: object | NotGiven = NOT_GIVEN,
-        top_logprobs: int | NotGiven = NOT_GIVEN,
-        top_p: float | NotGiven = NOT_GIVEN,
-        user: str | NotGiven = NOT_GIVEN,
+        frequency_penalty: float | Omit = omit,
+        logit_bias: Dict[str, int] | Omit = omit,
+        logprobs: bool | Omit = omit,
+        max_tokens: int | Omit = omit,
+        messages: Iterable[ChatMessageParam] | Omit = omit,
+        model: str | Omit = omit,
+        n: int | Omit = omit,
+        parallel_tool_calls: bool | Omit = omit,
+        presence_penalty: float | Omit = omit,
+        response_format: completion_create_params.ResponseFormat | Omit = omit,
+        seed: int | Omit = omit,
+        stop: SequenceNotStr[str] | Omit = omit,
+        stream: bool | Omit = omit,
+        stream_options: completion_create_params.StreamOptions | Omit = omit,
+        temperature: float | Omit = omit,
+        tool_choice: object | Omit = omit,
+        tools: object | Omit = omit,
+        top_logprobs: int | Omit = omit,
+        top_p: float | Omit = omit,
+        user: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ChatResponse:
         """
         Interact with language models via OpenAI's chat completions API
diff --git a/src/arcadepy/resources/health.py b/src/arcadepy/resources/health.py
index 02f18e4..34d2cc7 100644
--- a/src/arcadepy/resources/health.py
+++ b/src/arcadepy/resources/health.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from .._types import NOT_GIVEN, Body, Query, Headers, NotGiven
+from .._types import Body, Query, Headers, NotGiven, not_given
 from .._compat import cached_property
 from .._resource import SyncAPIResource, AsyncAPIResource
 from .._response import (
@@ -47,7 +47,7 @@ def check(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> HealthSchema:
         """Check if Arcade Engine is healthy"""
         return self._get(
@@ -87,7 +87,7 @@ async def check(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> HealthSchema:
         """Check if Arcade Engine is healthy"""
         return await self._get(
diff --git a/src/arcadepy/resources/tools/formatted.py b/src/arcadepy/resources/tools/formatted.py
index c1d4db6..4b85016 100644
--- a/src/arcadepy/resources/tools/formatted.py
+++ b/src/arcadepy/resources/tools/formatted.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from ..._types import NOT_GIVEN, Body, Query, Headers, NotGiven
+from ..._types import Body, Omit, Query, Headers, NotGiven, omit, not_given
 from ..._utils import maybe_transform, async_maybe_transform
 from ..._compat import cached_property
 from ..._resource import SyncAPIResource, AsyncAPIResource
@@ -44,17 +44,17 @@ def with_streaming_response(self) -> FormattedResourceWithStreamingResponse:
     def list(
         self,
         *,
-        format: str | NotGiven = NOT_GIVEN,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
-        toolkit: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        format: str | Omit = omit,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
+        toolkit: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SyncOffsetPage[object]:
         """
         Returns a page of tools from the engine configuration, optionally filtered by
@@ -105,14 +105,14 @@ def get(
         self,
         name: str,
         *,
-        format: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        format: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> object:
         """
         Returns the formatted tool specification for a specific tool, given a provider
@@ -174,17 +174,17 @@ def with_streaming_response(self) -> AsyncFormattedResourceWithStreamingResponse
     def list(
         self,
         *,
-        format: str | NotGiven = NOT_GIVEN,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
-        toolkit: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        format: str | Omit = omit,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
+        toolkit: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AsyncPaginator[object, AsyncOffsetPage[object]]:
         """
         Returns a page of tools from the engine configuration, optionally filtered by
@@ -235,14 +235,14 @@ async def get(
         self,
         name: str,
         *,
-        format: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        format: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> object:
         """
         Returns the formatted tool specification for a specific tool, given a provider
diff --git a/src/arcadepy/resources/tools/scheduled.py b/src/arcadepy/resources/tools/scheduled.py
index af32f59..5003b23 100644
--- a/src/arcadepy/resources/tools/scheduled.py
+++ b/src/arcadepy/resources/tools/scheduled.py
@@ -4,7 +4,7 @@
 
 import httpx
 
-from ..._types import NOT_GIVEN, Body, Query, Headers, NotGiven
+from ..._types import Body, Omit, Query, Headers, NotGiven, omit, not_given
 from ..._utils import maybe_transform
 from ..._compat import cached_property
 from ..._resource import SyncAPIResource, AsyncAPIResource
@@ -50,14 +50,14 @@ def with_streaming_response(self) -> ScheduledResourceWithStreamingResponse:
     def list(
         self,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SyncOffsetPage[ToolExecution]:
         """
         Returns a page of scheduled tool executions
@@ -103,7 +103,7 @@ def get(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ScheduledGetResponse:
         """
         Returns the details for a specific scheduled tool execution
@@ -151,14 +151,14 @@ def with_streaming_response(self) -> AsyncScheduledResourceWithStreamingResponse
     def list(
         self,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AsyncPaginator[ToolExecution, AsyncOffsetPage[ToolExecution]]:
         """
         Returns a page of scheduled tool executions
@@ -204,7 +204,7 @@ async def get(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ScheduledGetResponse:
         """
         Returns the details for a specific scheduled tool execution
diff --git a/src/arcadepy/resources/tools/tools.py b/src/arcadepy/resources/tools/tools.py
index 4157070..30aec45 100644
--- a/src/arcadepy/resources/tools/tools.py
+++ b/src/arcadepy/resources/tools/tools.py
@@ -8,7 +8,7 @@
 import httpx
 
 from ...types import tool_get_params, tool_list_params, tool_execute_params, tool_authorize_params
-from ..._types import NOT_GIVEN, Body, Query, Headers, NotGiven
+from ..._types import Body, Omit, Query, Headers, NotGiven, omit, not_given
 from ..._utils import maybe_transform, async_maybe_transform
 from ..._compat import cached_property
 from .formatted import (
@@ -74,17 +74,17 @@ def with_streaming_response(self) -> ToolsResourceWithStreamingResponse:
     def list(
         self,
         *,
-        include_format: List[Literal["arcade", "openai", "anthropic"]] | NotGiven = NOT_GIVEN,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
-        toolkit: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        include_format: List[Literal["arcade", "openai", "anthropic"]] | Omit = omit,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
+        toolkit: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SyncOffsetPage[ToolDefinition]:
         """
         Returns a page of tools from the engine configuration, optionally filtered by
@@ -135,15 +135,15 @@ def authorize(
         self,
         *,
         tool_name: str,
-        next_uri: str | NotGiven = NOT_GIVEN,
-        tool_version: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        next_uri: str | Omit = omit,
+        tool_version: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthorizationResponse:
         """
         Authorizes a user for a specific tool by name
@@ -185,17 +185,17 @@ def execute(
         self,
         *,
         tool_name: str,
-        include_error_stacktrace: bool | NotGiven = NOT_GIVEN,
-        input: Dict[str, object] | NotGiven = NOT_GIVEN,
-        run_at: str | NotGiven = NOT_GIVEN,
-        tool_version: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        include_error_stacktrace: bool | Omit = omit,
+        input: Dict[str, object] | Omit = omit,
+        run_at: str | Omit = omit,
+        tool_version: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ExecuteToolResponse:
         """
         Executes a tool by name and arguments
@@ -242,14 +242,14 @@ def get(
         self,
         name: str,
         *,
-        include_format: List[Literal["arcade", "openai", "anthropic"]] | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        include_format: List[Literal["arcade", "openai", "anthropic"]] | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ToolDefinition:
         """
         Returns the arcade tool specification for a specific tool
@@ -319,17 +319,17 @@ def with_streaming_response(self) -> AsyncToolsResourceWithStreamingResponse:
     def list(
         self,
         *,
-        include_format: List[Literal["arcade", "openai", "anthropic"]] | NotGiven = NOT_GIVEN,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
-        toolkit: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        include_format: List[Literal["arcade", "openai", "anthropic"]] | Omit = omit,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
+        toolkit: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AsyncPaginator[ToolDefinition, AsyncOffsetPage[ToolDefinition]]:
         """
         Returns a page of tools from the engine configuration, optionally filtered by
@@ -380,15 +380,15 @@ async def authorize(
         self,
         *,
         tool_name: str,
-        next_uri: str | NotGiven = NOT_GIVEN,
-        tool_version: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        next_uri: str | Omit = omit,
+        tool_version: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AuthorizationResponse:
         """
         Authorizes a user for a specific tool by name
@@ -430,17 +430,17 @@ async def execute(
         self,
         *,
         tool_name: str,
-        include_error_stacktrace: bool | NotGiven = NOT_GIVEN,
-        input: Dict[str, object] | NotGiven = NOT_GIVEN,
-        run_at: str | NotGiven = NOT_GIVEN,
-        tool_version: str | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        include_error_stacktrace: bool | Omit = omit,
+        input: Dict[str, object] | Omit = omit,
+        run_at: str | Omit = omit,
+        tool_version: str | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ExecuteToolResponse:
         """
         Executes a tool by name and arguments
@@ -487,14 +487,14 @@ async def get(
         self,
         name: str,
         *,
-        include_format: List[Literal["arcade", "openai", "anthropic"]] | NotGiven = NOT_GIVEN,
-        user_id: str | NotGiven = NOT_GIVEN,
+        include_format: List[Literal["arcade", "openai", "anthropic"]] | Omit = omit,
+        user_id: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> ToolDefinition:
         """
         Returns the arcade tool specification for a specific tool
diff --git a/src/arcadepy/resources/workers.py b/src/arcadepy/resources/workers.py
index 3fa6e2c..1bb6a03 100644
--- a/src/arcadepy/resources/workers.py
+++ b/src/arcadepy/resources/workers.py
@@ -5,7 +5,7 @@
 import httpx
 
 from ..types import worker_list_params, worker_tools_params, worker_create_params, worker_update_params
-from .._types import NOT_GIVEN, Body, Query, Headers, NoneType, NotGiven
+from .._types import Body, Omit, Query, Headers, NoneType, NotGiven, omit, not_given
 from .._utils import maybe_transform, async_maybe_transform
 from .._compat import cached_property
 from .._resource import SyncAPIResource, AsyncAPIResource
@@ -48,16 +48,16 @@ def create(
         self,
         *,
         id: str,
-        enabled: bool | NotGiven = NOT_GIVEN,
-        http: worker_create_params.HTTP | NotGiven = NOT_GIVEN,
-        mcp: worker_create_params.Mcp | NotGiven = NOT_GIVEN,
-        type: str | NotGiven = NOT_GIVEN,
+        enabled: bool | Omit = omit,
+        http: worker_create_params.HTTP | Omit = omit,
+        mcp: worker_create_params.Mcp | Omit = omit,
+        type: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerResponse:
         """
         Create a worker
@@ -93,15 +93,15 @@ def update(
         self,
         id: str,
         *,
-        enabled: bool | NotGiven = NOT_GIVEN,
-        http: worker_update_params.HTTP | NotGiven = NOT_GIVEN,
-        mcp: worker_update_params.Mcp | NotGiven = NOT_GIVEN,
+        enabled: bool | Omit = omit,
+        http: worker_update_params.HTTP | Omit = omit,
+        mcp: worker_update_params.Mcp | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerResponse:
         """
         Update a worker
@@ -136,14 +136,14 @@ def update(
     def list(
         self,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SyncOffsetPage[WorkerResponse]:
         """
         List all workers with their definitions
@@ -189,7 +189,7 @@ def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> None:
         """
         Delete a worker
@@ -223,7 +223,7 @@ def get(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerResponse:
         """
         Get a worker by ID
@@ -256,7 +256,7 @@ def health(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerHealthResponse:
         """
         Get the health of a worker
@@ -284,14 +284,14 @@ def tools(
         self,
         id: str,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> SyncOffsetPage[ToolDefinition]:
         """
         Returns a page of tools
@@ -355,16 +355,16 @@ async def create(
         self,
         *,
         id: str,
-        enabled: bool | NotGiven = NOT_GIVEN,
-        http: worker_create_params.HTTP | NotGiven = NOT_GIVEN,
-        mcp: worker_create_params.Mcp | NotGiven = NOT_GIVEN,
-        type: str | NotGiven = NOT_GIVEN,
+        enabled: bool | Omit = omit,
+        http: worker_create_params.HTTP | Omit = omit,
+        mcp: worker_create_params.Mcp | Omit = omit,
+        type: str | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerResponse:
         """
         Create a worker
@@ -400,15 +400,15 @@ async def update(
         self,
         id: str,
         *,
-        enabled: bool | NotGiven = NOT_GIVEN,
-        http: worker_update_params.HTTP | NotGiven = NOT_GIVEN,
-        mcp: worker_update_params.Mcp | NotGiven = NOT_GIVEN,
+        enabled: bool | Omit = omit,
+        http: worker_update_params.HTTP | Omit = omit,
+        mcp: worker_update_params.Mcp | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerResponse:
         """
         Update a worker
@@ -443,14 +443,14 @@ async def update(
     def list(
         self,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AsyncPaginator[WorkerResponse, AsyncOffsetPage[WorkerResponse]]:
         """
         List all workers with their definitions
@@ -496,7 +496,7 @@ async def delete(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> None:
         """
         Delete a worker
@@ -530,7 +530,7 @@ async def get(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerResponse:
         """
         Get a worker by ID
@@ -563,7 +563,7 @@ async def health(
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> WorkerHealthResponse:
         """
         Get the health of a worker
@@ -591,14 +591,14 @@ def tools(
         self,
         id: str,
         *,
-        limit: int | NotGiven = NOT_GIVEN,
-        offset: int | NotGiven = NOT_GIVEN,
+        limit: int | Omit = omit,
+        offset: int | Omit = omit,
         # Use the following arguments if you need to pass additional parameters to the API that aren't available via kwargs.
         # The extra values given here take precedence over values defined on the client or passed to this method.
         extra_headers: Headers | None = None,
         extra_query: Query | None = None,
         extra_body: Body | None = None,
-        timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
+        timeout: float | httpx.Timeout | None | NotGiven = not_given,
     ) -> AsyncPaginator[ToolDefinition, AsyncOffsetPage[ToolDefinition]]:
         """
         Returns a page of tools
diff --git a/src/arcadepy/types/worker_response.py b/src/arcadepy/types/worker_response.py
index 47c4ea8..bd32e7a 100644
--- a/src/arcadepy/types/worker_response.py
+++ b/src/arcadepy/types/worker_response.py
@@ -5,7 +5,7 @@
 
 from .._models import BaseModel
 
-__all__ = ["WorkerResponse", "Binding", "HTTP", "HTTPSecret", "Mcp", "Oxp", "OxpSecret"]
+__all__ = ["WorkerResponse", "Binding", "HTTP", "HTTPSecret", "Mcp"]
 
 
 class Binding(BaseModel):
@@ -44,28 +44,6 @@ class Mcp(BaseModel):
     uri: Optional[str] = None
 
 
-class OxpSecret(BaseModel):
-    binding: Optional[Literal["static", "tenant", "project", "account"]] = None
-
-    editable: Optional[bool] = None
-
-    exists: Optional[bool] = None
-
-    hint: Optional[str] = None
-
-    value: Optional[str] = None
-
-
-class Oxp(BaseModel):
-    retry: Optional[int] = None
-
-    secret: Optional[OxpSecret] = None
-
-    timeout: Optional[int] = None
-
-    uri: Optional[str] = None
-
-
 class WorkerResponse(BaseModel):
     id: Optional[str] = None
 
@@ -79,6 +57,4 @@ class WorkerResponse(BaseModel):
 
     mcp: Optional[Mcp] = None
 
-    oxp: Optional[Oxp] = None
-
     type: Optional[Literal["http", "mcp", "unknown"]] = None
diff --git a/tests/test_transform.py b/tests/test_transform.py
index b104e1c..bbb8c87 100644
--- a/tests/test_transform.py
+++ b/tests/test_transform.py
@@ -8,7 +8,7 @@
 
 import pytest
 
-from arcadepy._types import NOT_GIVEN, Base64FileInput
+from arcadepy._types import Base64FileInput, omit, not_given
 from arcadepy._utils import (
     PropertyInfo,
     transform as _transform,
@@ -450,4 +450,11 @@ async def test_transform_skipping(use_async: bool) -> None:
 @pytest.mark.asyncio
 async def test_strips_notgiven(use_async: bool) -> None:
     assert await transform({"foo_bar": "bar"}, Foo1, use_async) == {"fooBar": "bar"}
-    assert await transform({"foo_bar": NOT_GIVEN}, Foo1, use_async) == {}
+    assert await transform({"foo_bar": not_given}, Foo1, use_async) == {}
+
+
+@parametrize
+@pytest.mark.asyncio
+async def test_strips_omit(use_async: bool) -> None:
+    assert await transform({"foo_bar": "bar"}, Foo1, use_async) == {"fooBar": "bar"}
+    assert await transform({"foo_bar": omit}, Foo1, use_async) == {}