src/Cache/CacheProvider.php
public function load()
    {
        $cached_file = sprintf('%s/vars/%s.php', $this->path, $this->name);
        $this->loaded_vars = unserialize(file_get_contents($cached_file));
    }
public function load()
    {
        $cached_file = sprintf('%s/vars/%s.php', $this->path, $this->name);
        $this->loaded_vars = unserialize(file_get_contents($cached_file));
    }
Load the cached file into $this->loaded_vars