Empty array of a very specific type?

[diggyk]

I'm trying to send a StartTransientUnit to the SystemD manager, but it has a very peculiar part of the spec. For the last argument, it expects an a(sa(sv)) but the specs say this is unused and you should just send 0 here for the value.

So when I look at a valid message using the bus monitor, I see it looks like this:

          ARRAY "(sa(sv))" {
          };

But I can't figure out how to craft that using this crate. Any pointers?

[diwic]

How about:

let x: Vec<(String, Vec<(String, Variant)>)> = vec!();

...then you can do whatever you want to do with x, e g use it in message.append1(x) or Message::call_with_args.

[diggyk]

Perfect! That worked beautifully! Thank you so much. Love this crate so much!