Devise\DeviseServiceProvider::registerConfigMerging PHP Method

    private function registerConfigMerging()
    {
        $publishes = [];
        foreach ($this->configFiles as $key) {
            $configFile = str_replace('.', DIRECTORY_SEPARATOR, $key);
            $this->mergeConfigFrom(__DIR__ . "/../config/{$configFile}.php", "{$key}");
        }
    }