Create a customizable text.
Example :
use Drupal\Component\Render\FormattableMarkup;
$text = new FormattableMarkup('My name is @name', ['@name' => "The name"]);
Get (drush config-get)
drush cget CONFIG_NAME CONFIG_KEY
Examples:
drush cget system.site
drush cget system.site page.front
Set (drush config-set)
If you have an error like this, when you use a custom views filter plugin, the resent is now you need to have a config schema for all Views filter plugins.
The error :