Create a temporary directory in templates directory:
mkdir <path_to_cloned_repo>/templates/temp
Change directory to the same
cd <path_to_cloned_repo>/templates/temp
Run the following command to create json for testing purposes:
jsonnet main.jsonnet -J <path_to_cloned_repo>/manifests/<manifest_number>/<manifest_id> --ext-str IMAGE='image' -m temp
