from io import BufferedReader, StringIO
from typing import Any, Iterator, Optional, Union

from django.core.files.utils import FileProxyMixin


class File(FileProxyMixin):
    DEFAULT_CHUNK_SIZE: Any = ...
    file: StringIO = ...
    name: Optional[str] = ...
    mode: str = ...
    def __init__(self, file: Any, name: Optional[str] = ...) -> None: ...
    def __bool__(self) -> bool: ...
    def __len__(self) -> int: ...
    def size(self) -> int: ...
    def chunks(
        self, chunk_size: Optional[int] = ...
    ) -> Iterator[Union[bytes, bytearray]]: ...
    def multiple_chunks(self, chunk_size: Optional[Any] = ...): ...
    def __iter__(self) -> Iterator[Union[bytes, str]]: ...
    def __enter__(self) -> File: ...
    def __exit__(self, exc_type: None, exc_value: None, tb: None) -> None: ...
    def open(self, mode: Optional[str] = ...) -> File: ...
    def close(self) -> None: ...

class ContentFile(File):
    file: StringIO
    size: Any = ...
    def __init__(
        self, content: Union[bytes, str], name: Optional[str] = ...
    ) -> None: ...
    def __bool__(self) -> bool: ...
    def open(self, mode: Optional[str] = ...) -> ContentFile: ...
    def close(self) -> None: ...
    def write(self, data: str) -> int: ...

def endswith_cr(line: bytes) -> bool: ...
def endswith_lf(line: Union[bytes, str]) -> bool: ...
def equals_lf(line: bytes) -> bool: ...