code: def _get_sk(**kwargs):
      '''
      Return sk
      '''
      config = _get_config(**kwargs)
      key = salt.utils.stringutils.to_str(config['sk'])
      sk_file = config['sk_file']
      if not key and sk_file:
          with salt.utils.files.fopen(sk_file, 'rb') as keyf:
              key = salt.utils.stringutils.to_unicode(keyf.read()).rstrip('\n')
      if key is None:
          raise Exception('no key or sk_file found')
      return base64.b64decode(keyf _get_sk(**kwargs):
      '''
      Return sk
      '''
      config = _get_config(**kwargs)
      key = salt.utils.stringutils.to_str(config['sk'])
      sk_file = config['sk_file']
      if not key and sk_file:
          with salt.utils.files.fopen(sk_file, 'rb') as keyf:
              key = salt.utils.stringutils.to_unicode(keyf.read()).rstrip('\n')
      if key is None:
          raise Exception('no key or sk_file found')
      return base64.b64decode(key)
docs: Return sk