@Deprecated
    public ApnsServiceBuilder withProxySocket(Socket proxySocket) {
        return this.withProxy(new Proxy(Proxy.Type.SOCKS,
                proxySocket.getRemoteSocketAddress()));
    }
Specify the socket to be used as underlying socket to connect
to the APN service.

This assumes that the socket connects to a SOCKS proxy.

@deprecated use {@link ApnsServiceBuilder#withProxy(Proxy)} instead
@param proxySocket   the underlying socket for connections
@return  this
src/main/java/com/notnoop/apns/ApnsServiceBuilder.java