from io import BytesIO
from django.core.handlers.wsgi import WSGIRequest
from django.http.request import QueryDict
from django.utils.datastructures import (
    ImmutableList,
    MultiValueDict,
)
from typing import (
    Any,
    Dict,
    Iterator,
    List,
    Optional,
    Tuple,
    Union,
)


def _parse_header_params(s: bytes) -> List[bytes]: ...


def exhaust(stream_or_iterable: Union[BytesIO, WSGIRequest]) -> None: ...


def parse_boundary_stream(
    stream: LazyStream,
    max_header_size: int
) -> Union[Tuple[str, Dict[Any, Any], LazyStream], Tuple[str, Dict[str, Tuple[str, Dict[str, bytes]]], LazyStream], Tuple[str, Dict[str, Union[Tuple[str, Dict[str, bytes]], Tuple[str, Dict[Any, Any]]]], LazyStream], Tuple[str, Dict[str, Union[Tuple[str, Dict[str, str]], Tuple[str, Dict[Any, Any]]]], LazyStream]]: ...


def parse_header(line: bytes) -> Union[Tuple[str, Dict[Any, Any]], Tuple[str, Dict[str, bytes]]]: ...


class BoundaryIter:
    def __init__(self, stream: LazyStream, boundary: bytes) -> None: ...
    def __next__(self) -> bytes: ...
    def _find_boundary(self, data: bytes) -> Optional[Tuple[int, int]]: ...


class ChunkIter:
    def __init__(self, flo: WSGIRequest, chunk_size: int = ...) -> None: ...
    def __next__(self) -> bytes: ...


class InterBoundaryIter:
    def __init__(self, stream: LazyStream, boundary: bytes) -> None: ...
    def __iter__(self) -> InterBoundaryIter: ...
    def __next__(self) -> LazyStream: ...


class LazyStream:
    def __init__(
        self,
        producer: Union[BoundaryIter, ChunkIter],
        length: None = ...
    ) -> None: ...
    def __iter__(self) -> LazyStream: ...
    def __next__(self) -> bytes: ...
    def _update_unget_history(self, num_bytes: int) -> None: ...
    def read(self, size: Optional[int] = ...) -> bytes: ...
    def unget(self, bytes: bytes) -> None: ...


class MultiPartParser:
    def IE_sanitize(self, filename: str) -> str: ...
    def __init__(
        self,
        META: Dict[str, Any],
        input_data: WSGIRequest,
        upload_handlers: ImmutableList,
        encoding: None = ...
    ) -> None: ...
    def _close_files(self) -> None: ...
    def handle_file_complete(self, old_field_name: str, counters: List[int]) -> None: ...
    def parse(self) -> Tuple[QueryDict, MultiValueDict]: ...


class Parser:
    def __init__(self, stream: LazyStream, boundary: bytes) -> None: ...
    def __iter__(
        self
    ) -> Iterator[Union[Tuple[str, Dict[Any, Any], LazyStream], Tuple[str, Dict[str, Tuple[str, Dict[str, bytes]]], LazyStream], Tuple[str, Dict[str, Union[Tuple[str, Dict[str, bytes]], Tuple[str, Dict[Any, Any]]]], LazyStream]]]: ...