The main SoundAPI thunderstore package no longer contains any reference to LethalCompany. Instead a bindings mod is avaliable that contains all the conditions.

NOTE

You should depend on the bindings mod as well as SoundAPI

The LethalCompany bindings mod also made breaking changes to be more consistent with the SoundAPI Naming Convention
e.g: LethalCompany:player_health -> LethalCompany:player:health