var sas = require('../index');
var task = function(cb,i){
var indexs = i.indexs();
console.log(indexs);
console.log(0, i.index);
for(let j = 1, len = indexs.length; j < len; j++){
console.log(j, i.upperIndex(j));
}
cb();
}
sas([{h:[{e:[{l:[{l:[{o:[task]}]}]}]}]}]);