code: function delimsObject(delims) {
    var a = delims[0], b = delims[1];
    var res = {};
    res.interpolate = lazy.delimiters(a + '=', b);
    res.evaluate = lazy.delimiters(a, b);
    res.escape = lazy.delimiters(a + '-', b);
    return res;
  }
docs: Handle custom delimiters