Input
Required
Rule `required`: Requires the field to be present and non-empty.
Usage
Use for mandatory fields.
$schema = \Lemonade\Framework\Validation\ValidationSchema::create()
->field('field', 'Field')
->required()
->end();
$result = $validator->validate($payload, $schema);
Stable rule name
required for translations, registry lookup and per-rule messages.
Group
Required / Conditional