def __init__()

in src/anthropic/_base_client.py [0:0]


    def __init__(self, **kwargs: Any) -> None:
        kwargs.setdefault("timeout", DEFAULT_TIMEOUT)
        kwargs.setdefault("limits", DEFAULT_CONNECTION_LIMITS)
        kwargs.setdefault("follow_redirects", True)

        if "transport" not in kwargs:
            socket_options: List[Tuple[int, int, Union[int, bool]]] = [(socket.SOL_SOCKET, socket.SO_KEEPALIVE, True)]

            TCP_KEEPINTVL = getattr(socket, "TCP_KEEPINTVL", None)

            if TCP_KEEPINTVL is not None:
                socket_options.append((socket.IPPROTO_TCP, TCP_KEEPINTVL, 60))
            elif sys.platform == "darwin":
                TCP_KEEPALIVE = getattr(socket, "TCP_KEEPALIVE", 0x10)
                socket_options.append((socket.IPPROTO_TCP, TCP_KEEPALIVE, 60))

            TCP_KEEPCNT = getattr(socket, "TCP_KEEPCNT", None)
            if TCP_KEEPCNT is not None:
                socket_options.append((socket.IPPROTO_TCP, TCP_KEEPCNT, 5))

            TCP_KEEPIDLE = getattr(socket, "TCP_KEEPIDLE", None)
            if TCP_KEEPIDLE is not None:
                socket_options.append((socket.IPPROTO_TCP, TCP_KEEPIDLE, 60))

            kwargs["transport"] = httpx.AsyncHTTPTransport(
                # note: limits is always set above
                limits=kwargs["limits"],
                socket_options=socket_options,
            )

        super().__init__(**kwargs)