SessionTree

let guard = libtmux::test::TestServer::new().await?;
let session = guard.server().new_session("work").await?;
session.new_window("editor").await?;

// One round of listings for the whole hierarchy, rather than one call per
// session and another per window.
let tree = guard.server().hierarchy().await?;
let found = tree
    .iter()
    .find(|branch| branch.session.name().to_string_lossy() == "work")
    .expect("the session just created");
assert_eq!(found.windows.len(), 2);

guard.shutdown().await?;