public function render_instance( $instance_id, $instance ) {
		$this->instance = $instance_id;
		$has_data       = array_filter( $instance );
		if ( ! empty( $has_data ) ) {
			if ( ! isset( $this->struct['active'] ) ) {
				$this->struct['active'] = 'true';
			}

			return $this->render_repeatable();
		}

		return '';
	}