ExifReadOnly.php

<?php

namespace Drupal\exif\Plugin\migrate\field\d7;

use Drupal\migrate_drupal\Plugin\migrate\field\FieldPluginBase;

/**
 * Exif readonly migrate plugin.
 *
 * @MigrateField(
 *   id = "exif_read_only",
 *   core = {7},
 *   source_module = "exif",
 *   destination_module = "exif"
 * )
 */
class ExifReadOnly extends FieldPluginBase {
    
    /**
     * {@inheritdoc}
     */
    public function getFieldWidgetMap() {
        return [
            'exif_readonly' => 'exif_readonly',
        ];
    }

}