code: function argNames(str) {
  
    // Matching
    var matches = str.match(regexes.argMatch);
  
    if (!matches)
      throw Error('sandcrawler.phantom_script.arguments: not enough arguments to compile a correct phantom scraper.');
  
    return [matches[1], matches[2]];
  }
docs: Retrieve the first two arguments of the given stringified function