Install golang-gopkg-guregu-null.v3-dev by entering the following commands in the terminal:
sudo apt update sudo apt install golang-gopkg-guregu-null.v3-dev
Description:
Reasonable handling of nullable SQL and JSON values
This library contains SQL types that consider zero input and null input as separate values, with convenient support for JSON and text marshaling in Go.
Homepage: http://gopkg.in/guregu/null.v3
Version: 3.1+git20160228.0.41961ce-1
Section: universe/devel