/org/freedesktop/login1 org.freedesktop.login1.Manager \
PrepareForShutdown b false
+systemd-run --quiet --service-type=notify --unit=test-busctl-wait --pty \
+ -p ExecStartPost="busctl emit /test org.freedesktop.fake1 TestSignal s success" \
+ busctl --timeout=3 wait /test org.freedesktop.fake1 TestSignal | grep -qF 's "success"'
+
busctl get-property org.freedesktop.systemd1 /org/freedesktop/systemd1 org.freedesktop.systemd1.Manager \
Version
busctl get-property --verbose \