public function define_trigger() {

		$options = Automator()->helpers->recipe->ultimate_member->options->get_um_forms( esc_attr__( 'Form', 'uncanny-automator' ) );
		$options['options'] = array( '-1' => esc_attr__( 'Any form', 'uncanny-automator' ) ) + $options['options'];
		$trigger = array(
			'author'              => Automator()->get_author_name( $this->trigger_code ),
			'support_link'        => Automator()->get_author_support_link( $this->trigger_code, 'integration/ultimate-member/' ),
			'integration'         => self::$integration,
			'code'                => $this->trigger_code,
			/* translators: Logged-in trigger - Ultimate Member */
			'sentence'            => sprintf( esc_attr__( 'A user registers with {{a form:%1$s}}', 'uncanny-automator' ), $this->trigger_meta ),
			/* translators: Logged-in trigger - Ultimate Member */
			'select_option_name'  => esc_attr__( 'A user registers with {{a form}}', 'uncanny-automator' ),
			'action'              => 'um_registration_complete',
			'priority'            => 99,
			'accepted_args'       => 2,
			'validation_function' => array( $this, 'um_user_register_with_form' ),
			'options'             => [
				$options,
			],
		);
		Automator()->register->trigger( $trigger );
		return;
	}