Libguestfs - Jun 2018 - HELP

Hi,
i cannot import libguestfs golang lib,

 go get  package libguestfs.org/guestfs: unrecognized import path "
libguestfs.org/guestfs" (https fetch: Get https://libguestfs.org/
guestfs?go-get=1: dial tcp [2001:41c9:1:422::215]:443: getsockopt:
connection refused)


 Any ideas?
 has the url changed or something?


-- 
Regards,
Shashwat Shagun