Automattic\WooCommerce\EmailEditor\Validator

Schema::nullable │ public │ WC 1.0

Sets the schema as nullable.

Метод класса: Schema{}

Хуков нет.

Возвращает

static.

Использование

$Schema = new Schema();
$Schema->nullable();

Код Schema::nullable() WC 10.0.2

woocommerce/packages/email-editor/src/Validator/class-schema.php 
public function nullable() {
	$type = $this->schema['type'] ?? array( 'null' );
	return $this->update_schema_property( 'type', is_array( $type ) ? $type : array( $type, 'null' ) );
}