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✏️ Editing: trsock.py

import socket

class TransportSocket:

"""A socket-like wrapper for exposing real transport sockets.

These objects can be safely returned by APIs like
    `transport.get_extra_info('socket')`.  All potentially disruptive
    operations (like "socket.close()") are banned.
    """

__slots__ = ('_sock',)

def __init__(self, sock: socket.socket):
        self._sock = sock

@property
    def family(self):
        return self._sock.family

@property
    def type(self):
        return self._sock.type

@property
    def proto(self):
        return self._sock.proto

def __repr__(self):
        s = (
            f"<asyncio.TransportSocket fd={self.fileno()}, "
            f"family={self.family!s}, type={self.type!s}, "
            f"proto={self.proto}"
        )

if self.fileno() != -1:
            try:
                laddr = self.getsockname()
                if laddr:
                    s = f"{s}, laddr={laddr}"
            except socket.error:
                pass
            try:
                raddr = self.getpeername()
                if raddr:
                    s = f"{s}, raddr={raddr}"
            except socket.error:
                pass

return f"{s}>"

def __getstate__(self):
        raise TypeError("Cannot serialize asyncio.TransportSocket object")

def fileno(self):
        return self._sock.fileno()

def dup(self):
        return self._sock.dup()

def get_inheritable(self):
        return self._sock.get_inheritable()

def shutdown(self, how):
        # asyncio doesn't currently provide a high-level transport API
        # to shutdown the connection.
        self._sock.shutdown(how)

def getsockopt(self, *args, **kwargs):
        return self._sock.getsockopt(*args, **kwargs)

def setsockopt(self, *args, **kwargs):
        self._sock.setsockopt(*args, **kwargs)

def getpeername(self):
        return self._sock.getpeername()

def getsockname(self):
        return self._sock.getsockname()

def getsockbyname(self):
        return self._sock.getsockbyname()

def settimeout(self, value):
        if value == 0:
            return
        raise ValueError(
            'settimeout(): only 0 timeout is allowed on transport sockets')

def gettimeout(self):
        return 0

def setblocking(self, flag):
        if not flag:
            return
        raise ValueError(
            'setblocking(): transport sockets cannot be blocking')

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