anchor.diff:      mkdir -p "$outputDir"
       ${foreachSh allGrammars
         ({name, orga, repo}: ''
  -        ${updateGrammar} '${lib.generators.toJSON {} {inherit orga repo;}}' \
  +        ${fetchImpl} fetch-repo '${lib.generators.toJSON {} {inherit orga repo;}}' \
             > $outputDir/${name}.json
         '')}
       ( echo "{ lib }:"
  
positive.code:   # TODO
    urlEscape = x: x;
  
    # update one tree-sitter grammar repo and print their nix-prefetch-git output
    updateGrammar = writers.writePython3 "latest-github-release" {
      flakeIgnore = ["E501"];
    } ''
      from urllib.parse import quote
  
negative.code: 
      debug = True if os.environ.get("DEBUG", False) else False
  
      mode = sys.argv[1]
      jsonArg = json.loads(sys.argv[2])
  
  
      def curl_args(orga, repo, token):
  