code: def _find_file(self, path, silent=False):
          
          for filename in DEFAULT_FILENAMES:
              full_path = os.path.join(path, filename) if path else filename
              if os.path.exists(full_path):
                  return full_path
  
          # Return default filename if silent
          if silent:
              return os.path.join(path, DEFAULT_FILENAME)
  
          raise ReadmeNotFoundError(path)
docs: Gets the full path and extension, or None if a README file could not
          be found at the specified path.