When creating an image class, it throws an error!

Hi! 
When creating an image class, it throws an error!!!

Code:

$image = Config\Services::image();

Error

Class 'App\Controllers\Config\Services' not found

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CI version 4.0.0-rc.3

Try a fully-qualified namespace. (note the slash before Config)

Code:

$image = \Config\Services::image();