how to elevate privilege ?

[fperrad]

For example the following command

busctl call org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager UnlockSessions

could be translated in Lua

local bus = require'lsdbus.core'.open'system'
local ok, res = bus:call('org.freedesktop.login1', '/org/freedesktop/login1', 'org.freedesktop.login1.Manager', 'UnlockSessions')
if not ok then
    error(res[2])
end

Now, in the context of a daemon written in Lua and running as unpriviligied user

a direct call like os.execute'busctl call ...' fails with Call failed: Access denied.

but os.execute'sudo busctl call ...' works.

So, how to do an equivalent of the sudo with lsdbus ?