py-libp2p/libp2p/io/abc.py

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from abc import ABC, abstractmethod
class Closer(ABC):
async def close(self) -> None:
...
class Reader(ABC):
@abstractmethod
async def read(self, n: int = -1) -> bytes:
...
class Writer(ABC):
@abstractmethod
async def write(self, data: bytes) -> int:
...
class WriteCloser(Writer, Closer):
pass
class ReadCloser(Reader, Closer):
pass
class ReadWriter(Reader, Writer):
pass
class ReadWriteCloser(Reader, Writer, Closer):
pass