def pre_load(self, env, silent, key):
        """Do we have any file to pre-load before main settings file?"""
        preloads = self.get("PRELOAD_FOR_DYNACONF", [])
        if preloads:
            self.load_file(path=preloads, env=env, silent=silent, key=key)
Do we have any file to pre-load before main settings file?
dynaconf/base.py