mbed-os/components/802.15.4_RF/stm-s2lp-rf-driver/mbed_lib.json

{
    "name": "s2lp",
    "config": {
        "provide-default": {
            "help": "Provide default NanostackRfpy. [true/false]",
            "value": false
        },
    "target_overrides": {
        "MTB_STM_S2LP": {
           "s2lp.provide-default": true
         }
        }
    }
}