Function CFWriteStreamUnscheduleFromRunLoop 

pub extern "C-unwind" fn CFWriteStreamUnscheduleFromRunLoop(
    stream: &CFWriteStream,
    run_loop: Option<&CFRunLoop>,
    run_loop_mode: Option<&CFRunLoopMode>,
)

👎Deprecated: renamed to CFWriteStream::unschedule_from_run_loop

Available on crate features CFRunLoop and CFStream only.