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_types.py
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from __future__ import annotations
from os import PathLike
from typing import (
IO,
TYPE_CHECKING,
Any,
Dict,
List,
Type,
Tuple,
Union,
Mapping,
TypeVar,
Callable,
Iterator,
Optional,
Sequence,
)
from typing_extensions import (
Set,
Literal,
Protocol,
TypeAlias,
TypedDict,
SupportsIndex,
overload,
override,
runtime_checkable,
)
import httpx
import pydantic
from httpx import URL, Proxy, Timeout, Response, BaseTransport, AsyncBaseTransport
if TYPE_CHECKING:
from ._models import BaseModel
from ._response import APIResponse, AsyncAPIResponse
Transport = BaseTransport
AsyncTransport = AsyncBaseTransport
Query = Mapping[str, object]
Body = object
AnyMapping = Mapping[str, object]
ModelT = TypeVar("ModelT", bound=pydantic.BaseModel)
_T = TypeVar("_T")
# Approximates httpx internal ProxiesTypes and RequestFiles types
# while adding support for `PathLike` instances
ProxiesDict = Dict["str | URL", Union[None, str, URL, Proxy]]
ProxiesTypes = Union[str, Proxy, ProxiesDict]
if TYPE_CHECKING:
Base64FileInput = Union[IO[bytes], PathLike[str]]
FileContent = Union[IO[bytes], bytes, PathLike[str]]
else:
Base64FileInput = Union[IO[bytes], PathLike]
FileContent = Union[IO[bytes], bytes, PathLike] # PathLike is not subscriptable in Python 3.8.
FileTypes = Union[
# file (or bytes)
FileContent,
# (filename, file (or bytes))
Tuple[Optional[str], FileContent],
# (filename, file (or bytes), content_type)
Tuple[Optional[str], FileContent, Optional[str]],
# (filename, file (or bytes), content_type, headers)
Tuple[Optional[str], FileContent, Optional[str], Mapping[str, str]],
]
RequestFiles = Union[Mapping[str, FileTypes], Sequence[Tuple[str, FileTypes]]]
# duplicate of the above but without our custom file support
HttpxFileContent = Union[IO[bytes], bytes]
HttpxFileTypes = Union[
# file (or bytes)
HttpxFileContent,
# (filename, file (or bytes))
Tuple[Optional[str], HttpxFileContent],
# (filename, file (or bytes), content_type)
Tuple[Optional[str], HttpxFileContent, Optional[str]],
# (filename, file (or bytes), content_type, headers)
Tuple[Optional[str], HttpxFileContent, Optional[str], Mapping[str, str]],
]
HttpxRequestFiles = Union[Mapping[str, HttpxFileTypes], Sequence[Tuple[str, HttpxFileTypes]]]
# Workaround to support (cast_to: Type[ResponseT]) -> ResponseT
# where ResponseT includes `None`. In order to support directly
# passing `None`, overloads would have to be defined for every
# method that uses `ResponseT` which would lead to an unacceptable
# amount of code duplication and make it unreadable. See _base_client.py
# for example usage.
#
# This unfortunately means that you will either have
# to import this type and pass it explicitly:
#
# from replicate import NoneType
# client.get('/foo', cast_to=NoneType)
#
# or build it yourself:
#
# client.get('/foo', cast_to=type(None))
if TYPE_CHECKING:
NoneType: Type[None]
else:
NoneType = type(None)
class RequestOptions(TypedDict, total=False):
headers: Headers
max_retries: int
timeout: float | Timeout | None
params: Query
extra_json: AnyMapping
idempotency_key: str
follow_redirects: bool
# 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 example:
```py
def get(timeout: Union[int, NotGiven, None] = NotGiven()) -> Response: ...
get(timeout=1) # 1s timeout
get(timeout=None) # No timeout
get() # Default timeout behavior, which may not be statically known at the method definition.
```
"""
def __bool__(self) -> Literal[False]:
return False
@override
def __repr__(self) -> str:
return "NOT_GIVEN"
NotGivenOr = Union[_T, NotGiven]
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:
```py
# as the default `Content-Type` header is `application/json` that will be sent
client.post("/upload/files", files={"file": b"my raw file content"})
# you can't explicitly override the header as it has to be dynamically generated
# 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()})
```
"""
def __bool__(self) -> Literal[False]:
return False
@runtime_checkable
class ModelBuilderProtocol(Protocol):
@classmethod
def build(
cls: type[_T],
*,
response: Response,
data: object,
) -> _T: ...
Headers = Mapping[str, Union[str, Omit]]
class HeadersLikeProtocol(Protocol):
def get(self, __key: str) -> str | None: ...
HeadersLike = Union[Headers, HeadersLikeProtocol]
ResponseT = TypeVar(
"ResponseT",
bound=Union[
object,
str,
None,
"BaseModel",
List[Any],
Dict[str, Any],
Response,
ModelBuilderProtocol,
"APIResponse[Any]",
"AsyncAPIResponse[Any]",
],
)
StrBytesIntFloat = Union[str, bytes, int, float]
# Note: copied from Pydantic
# https://github.com/pydantic/pydantic/blob/6f31f8f68ef011f84357330186f603ff295312fd/pydantic/main.py#L79
IncEx: TypeAlias = Union[Set[int], Set[str], Mapping[int, Union["IncEx", bool]], Mapping[str, Union["IncEx", bool]]]
PostParser = Callable[[Any], Any]
@runtime_checkable
class InheritsGeneric(Protocol):
"""Represents a type that has inherited from `Generic`
The `__orig_bases__` property can be used to determine the resolved
type variable for a given base class.
"""
__orig_bases__: tuple[_GenericAlias]
class _GenericAlias(Protocol):
__origin__: type[object]
class HttpxSendArgs(TypedDict, total=False):
auth: httpx.Auth
follow_redirects: bool
_T_co = TypeVar("_T_co", covariant=True)
if TYPE_CHECKING:
# This works because str.__contains__ does not accept object (either in typeshed or at runtime)
# https://github.com/hauntsaninja/useful_types/blob/5e9710f3875107d068e7679fd7fec9cfab0eff3b/useful_types/__init__.py#L285
class SequenceNotStr(Protocol[_T_co]):
@overload
def __getitem__(self, index: SupportsIndex, /) -> _T_co: ...
@overload
def __getitem__(self, index: slice, /) -> Sequence[_T_co]: ...
def __contains__(self, value: object, /) -> bool: ...
def __len__(self) -> int: ...
def __iter__(self) -> Iterator[_T_co]: ...
def index(self, value: Any, start: int = 0, stop: int = ..., /) -> int: ...
def count(self, value: Any, /) -> int: ...
def __reversed__(self) -> Iterator[_T_co]: ...
else:
# just point this to a normal `Sequence` at runtime to avoid having to special case
# deserializing our custom sequence type
SequenceNotStr = Sequence