docs: function normalizeArgs(id){
    var keys = id.keys;
    var pairs = {};
  
    Object.keys(id.keys).forEach(function forEachCSID(csid){
      var pair = pairs[csid] = {};
      // flexible buffer or base32 input
      pair.key = Buffer.isBuffer(id.keys[csid]) ? id.keys[csid]
               : base32.decode(id.keys[csid]);
  
      pair.secret = Buffer.isBuffer(id.secrets[csid]) ? id.secrets[csid]
                  : base32.decode(id.secrets[csid]);
    });
    return {pairs: pairs, debug: log.debug};
  }