docs: def load(file='/etc/pf.conf', noop=False):
      '''
      Load a ruleset from the specific file, overwriting the currently loaded ruleset.
  
      file:
          Full path to the file containing the ruleset.
  
      noop:
          Don't actually load the rules, just parse them.
  
      CLI example:
  
      .. code-block:: bash
  
          salt '*' pf.load /etc/pf.conf.d/lockdown.conf
      '''
      # We cannot precisely determine if loading the ruleset implied
      # any changes so assume it always does.
      ret = {'changes': True}
      cmd = ['pfctl', '-f', file]
  
      if noop:
          ret['changes'] = False
          cmd.append('-n')
  
      result = __salt__['cmd.run_all'](cmd,
                                       output_loglevel='trace',
                                       python_shell=False)
  
      if result['retcode'] != 0:
          raise CommandExecutionError(
              'Problem loading the ruleset from {0}'.format(file),
              info={'errors': [result['stderr']], 'changes': False}
          )
  
      return ret