code: def token_login(token):
      
  
      expired, invalid, user = login_token_status(token)
  
      if invalid:
          do_flash(*get_message('INVALID_LOGIN_TOKEN'))
      if expired:
          send_login_instructions(user)
          do_flash(*get_message('LOGIN_EXPIRED', email=user.email,
                                within=_security.login_within))
      if invalid or expired:
          return redirect(url_for('login'))
  
      login_user(user)
      after_this_request(_commit)
      do_flash(*get_message('PASSWORDLESS_LOGIN_SUCCESSFUL'))
  
      return redirect(get_post_login_redirect())
docs: View function that handles passwordless login via a token