$value = Config::get('app.locale');
if (Config::has('database.connections.mysql.host')) { // do something }In the above examples, we are using the `get` and `has` methods of the `Config` facade to access configuration data. The `get` method takes a configuration key as its argument and returns the corresponding value. The `has` method checks if the given configuration key exists. The `Config` facade is part of the `illuminate/support` package, which is a core dependency of Laravel. This package provides many helpful classes and functions that are used throughout the Laravel framework.