code: def find_name(self, template_name, search_dirs):
          
          file_name = self.make_file_name(template_name)
  
          return self._find_path_required(search_dirs, file_name)
docs: Return the path to a template with the given name.
  
          Arguments:
  
            template_name: the name of the template.
  
            search_dirs: the list of directories in which to search.