Dummy items: to send the "reinitialise" command to a ZWave device and "network sync"

Use your browser’s development tools (usually F12) to view the calls being made when selecting reinitialize device. Then use those in RESTDOCS to test it, and it will also provide the curl statement…

curl -X PUT --header "Content-Type: application/json" --header "Accept: application/json" -d "{action_reinit:	true}" "https://<your_OH_server>:8443/rest/things/<your_Thing_UID>/config"

There are some examples of using the REST API in a DSL rule here…