To support client certificate authentication for https communication, we need to provider cert file and key file to SwiftRequest. But looks like this function only work on macOS currently:

let warning = "Attempting to establish a secure connection; This is only supported by macOS 10.6 or higher. Resorting to default handling."

I understand that current swift SDK doesn't support such function on Linux. Could you suggest when SwiftRequest could support this function on Linux ?