docs: def digest(instr, checksum='md5'):
      '''
      Return a checksum digest for a string
  
      instr
          A string
      checksum : ``md5``
          The hashing algorithm to use to generate checksums. Valid options: md5,
          sha256, sha512.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' hashutil.digest 'get salted'
      '''
      hashing_funcs = {
          'md5': __salt__['hashutil.md5_digest'],
          'sha256': __salt__['hashutil.sha256_digest'],
          'sha512': __salt__['hashutil.sha512_digest'],
      }
      hash_func = hashing_funcs.get(checksum)
  
      if hash_func is None:
          raise salt.exceptions.CommandExecutionError(
                  "Hash func '{0}' is not supported.".format(checksum))
  
      return hash_func(instr)