public function notify_attendees( $ticket_ids, $tgt_ticket_type_id, $src_event_id, $tgt_event_id ) {
		$to_notify = array();

		$args = [
			'in' => $ticket_ids,
			'by' => [
				'ticket' => $tgt_ticket_type_id,
			],
		];

		$attendee_data = Tribe__Tickets__Tickets::get_event_attendees_by_args( $tgt_event_id, $args );

		// Build a list of email addresses we want to send notifications of the change to
		foreach ( $attendee_data['attendees'] as $attendee ) {
			// Skip if an email address isn't available
			if ( ! isset( $attendee['purchaser_email'] ) ) {
				continue;
			}

			if ( ! isset( $to_notify[ $attendee['purchaser_email'] ] ) ) {
				$to_notify[ $attendee['purchaser_email'] ] = array( $attendee );
			} else {
				$to_notify[ $attendee['purchaser_email'] ][] = $attendee;
			}
		}

		foreach ( $to_notify as $email_addr => $affected_tickets ) {
			/**
			 * Sets the moved ticket email address.
			 *
			 * @param string $email_addr
			 */
			$to = apply_filters( 'tribe_tickets_ticket_moved_email_recipient', $email_addr );

			/**
			 * Sets any attachments for the moved ticket email address.
			 *
			 * @param array $attachments
			 */
			$attachments = apply_filters( 'tribe_tickets_ticket_moved_email_attachments', array() );

			/**
			 * Sets the HTML for the moved ticket email.
			 *
			 * @param string $html
			 */
			$content = apply_filters( 'tribe_tickets_ticket_moved_email_content',
				$this->generate_email_content( $tgt_ticket_type_id, $src_event_id, $tgt_event_id, $affected_tickets )
			);

			/**
			 * Sets any headers for the moved tickets email.
			 *
			 * @param array $headers
			 */
			$headers = apply_filters( 'tribe_tickets_ticket_moved_email_headers',
				array( 'Content-type: text/html' )
			);

			/**
			 * Sets the subject line for the moved tickets email.
			 *
			 * @param string $subject
			 */
			$subject = apply_filters( 'tribe_tickets_ticket_moved_email_subject',
				sprintf( __( 'Changes to your tickets from %s', 'event-tickets' ), get_bloginfo( 'name' ) )
			);

			wp_mail( $to, $subject, $content, $headers, $attachments );
		}
	}