code: def run_hook(hook, config, quiet=False):
      
      if not hook:
          return True
  
      if not quiet:
          print_message('== Step 3. Run post-bootstrap hook ==')
  
      result = not run_cmd(prepare_args(hook, config),
                           echo=not quiet,
                           fail_silently=True,
                           shell=True)
  
      if not quiet:
          print_message()
  
      return result
docs: Run post-bootstrap hook if any.
  
      :param hook: Hook to run.
      :param config: Configuration dict.
      :param quiet: Do not output messages to STDOUT/STDERR. By default: False