github.com/hashicorp/packer@v1.14.3/command/test-fixtures/hcl2_upgrade/undeclared-variables/input.json (about)

     1  {
     2      "variables": {
     3          "foo": "bar"
     4      }, 
     5      "builders": [
     6          {
     7          "type": "null",
     8          "communicator": "{{ user `communicator_type` }}"
     9          }
    10      ],
    11      "provisioners": [
    12          {
    13              "type": "shell",
    14              "script": "{{user `scriptpath`}}"
    15          }
    16      ]
    17  }
    18