# Definition template

### Returns

Returns the unit hash.

### Example

This template depends on two variables: `$address` and `$ts`.

```javascript
const params = ['and', [
  ['address', '$address'], 
  ['in data feed', [['MO7ZZIU5VXHRZGGHVSZWLWL64IEND5K2'], 'timestamp', '>=', '$ts']]
]];

client.post.definitionTemplate(params, wif, function(err, result) {
  console.log(result);
});
```

### **Learn more**

* "21.1.4. Definition templates" (page 27) <https://obyte.org/Byteball.pdf>