github.com/hashicorp/packer@v1.14.3/command/test-fixtures/validate/null_var.json (about)

     1  {
     2      "variables": {
     3          "null_var": null
     4      },
     5      "builders": [{
     6          "type": "null",
     7          "communicator": "none"
     8      }],
     9      "provisioners": [
    10          {
    11              "type": "shell-local",
    12              "inline": "echo yop"
    13          }
    14      ]
    15  }