docs: def list_licenses():
      '''
      returns a list of applied powerpath license keys
      '''
      KEY_PATTERN = re.compile('Key (.*)')
  
      keys = []
      out = __salt__['cmd.run']('/sbin/emcpreg -list')
      for line in out.splitlines():
          match = KEY_PATTERN.match(line)
  
          if not match:
              continue
  
          keys.append({'key': match.group(1)})
  
      return keys