All classes that implement EmailFrequencyInterface in Open Social 8.8
- class \Drupal\activity_send_email\EmailFrequencyBase implements EmailFrequencyInterface
- class \Drupal\activity_send_email\Plugin\EmailFrequency\Daily
- class \Drupal\activity_send_email\Plugin\EmailFrequency\Immediately
- class \Drupal\activity_send_email\Plugin\EmailFrequency\None
- class \Drupal\activity_send_email\Plugin\EmailFrequency\Weekly