BP_Core_Nav::__construct( int $object_id )

	public function __construct( $object_id = 0 ) {
		if ( empty( $object_id ) ) {
			$this->object_id = (int) bp_displayed_user_id();
		} else {
			$this->object_id = (int) $object_id;
		}

		$this->nav[ $this->object_id ] = array();
	}