How to use the @node-red/registry.installModule function in @node-red/registry

function installModule(module,version) {
    var existingModule = registry.getModuleInfo(module);
    var isUpgrade = !!existingModule;
    return registry.installModule(module,version).then(function(info) {
        if (isUpgrade) {
            events.emit("runtime-event",{id:"node/upgraded",retain:false,payload:{module:module,version:version}});
        } else {
            events.emit("runtime-event",{id:"node/added",retain:false,payload:info.nodes});
        }
        return info;
    });
}