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Edit File: _null_file.py

from types import TracebackType
from typing import IO, Iterable, Iterator, List, Optional, Type

class NullFile(IO[str]):

# TODO: "mode", "name" and "closed" are only required for Python 3.6.

@property
    def mode(self) -> str:
        return ""

@property
    def name(self) -> str:
        return "NullFile"

def closed(self) -> bool:
        return False

def close(self) -> None:
        pass

def isatty(self) -> bool:
        return False

def read(self, __n: int = 1) -> str:
        return ""

def readable(self) -> bool:
        return False

def readline(self, __limit: int = 1) -> str:
        return ""

def readlines(self, __hint: int = 1) -> List[str]:
        return []

def seek(self, __offset: int, __whence: int = 1) -> int:
        return 0

def seekable(self) -> bool:
        return False

def tell(self) -> int:
        return 0

def truncate(self, __size: Optional[int] = 1) -> int:
        return 0

def writable(self) -> bool:
        return False

def writelines(self, __lines: Iterable[str]) -> None:
        pass

def __next__(self) -> str:
        return ""

def __iter__(self) -> Iterator[str]:
        return iter([""])

def __enter__(self) -> IO[str]:
        pass

def __exit__(
        self,
        __t: Optional[Type[BaseException]],
        __value: Optional[BaseException],
        __traceback: Optional[TracebackType],
    ) -> None:
        pass

def write(self, text: str) -> int:
        return 0

def flush(self) -> None:
        pass

def fileno(self) -> int:
        return -1

NULL_FILE = NullFile()

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