The package golang-github-flosch-pongo2.v4 4.0.2-2 has been added to kali-rolling. It has been imported from Debian: https://tracker.debian.org/pkg/golang-github-flosch-pongo2.v4 -- More information about golang-github-flosch-pongo2.v4: http://pkg.kali.org/pkg/golang-github-flosch-pongo2.v4