code: def __RenderOurModuleKeyFlags(self, module, output_lines, prefix=''):
      
      key_flags = self._GetKeyFlagsForModule(module)
      if key_flags:
        self.__RenderModuleFlags(module, key_flags, output_lines, prefix)
docs: Generates a help string for the key flags of a given module.
  
      Args:
        module: A module object or a module name (a string).
        output_lines: A list of strings.  The generated help message
          lines will be appended to this list.
        prefix: A string that is prepended to each generated help line.