chore(types): change optional parameter type from NotGiven to Omit

Author: stainless-app[bot]

src/cas_parser/__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 (
     Client,
@@ -48,7 +48,9 @@
     "ProxiesTypes",
     "NotGiven",
     "NOT_GIVEN",
+    "not_given",
     "Omit",
+    "omit",
     "CasParserError",
     "APIError",
     "APIStatusError",

src/cas_parser/_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 = {}

src/cas_parser/_client.py

@@ -3,21 +3,21 @@
 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
 
 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__
@@ -56,7 +56,7 @@ 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,
@@ -132,9 +132,9 @@ 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,
@@ -226,7 +226,7 @@ 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,
@@ -302,9 +302,9 @@ 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,

src/cas_parser/_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

src/cas_parser/_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
@@ -156,15 +160,18 @@ 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})
     ```
     """
 
     def __bool__(self) -> Literal[False]:
         return False
 
 
+omit = Omit()
+
+
 @runtime_checkable
 class ModelBuilderProtocol(Protocol):
     @classmethod

src/cas_parser/_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
 

src/cas_parser/_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.

src/cas_parser/resources/cas_generator.py

@@ -7,7 +7,7 @@
 import httpx
 
 from ..types import cas_generator_generate_cas_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
@@ -50,14 +50,14 @@ def generate_cas(
         from_date: str,
         password: str,
         to_date: str,
-        cas_authority: Literal["kfintech", "cams", "cdsl", "nsdl"] | NotGiven = NOT_GIVEN,
-        pan_no: str | NotGiven = NOT_GIVEN,
+        cas_authority: Literal["kfintech", "cams", "cdsl", "nsdl"] | Omit = omit,
+        pan_no: 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,
     ) -> CasGeneratorGenerateCasResponse:
         """
         This endpoint generates CAS (Consolidated Account Statement) documents by
@@ -133,14 +133,14 @@ async def generate_cas(
         from_date: str,
         password: str,
         to_date: str,
-        cas_authority: Literal["kfintech", "cams", "cdsl", "nsdl"] | NotGiven = NOT_GIVEN,
-        pan_no: str | NotGiven = NOT_GIVEN,
+        cas_authority: Literal["kfintech", "cams", "cdsl", "nsdl"] | Omit = omit,
+        pan_no: 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,
     ) -> CasGeneratorGenerateCasResponse:
         """
         This endpoint generates CAS (Consolidated Account Statement) documents by