| Variable                                                                                                                                                                                                                               | Description                                                                                   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------|
| **<a id="a_family.an_other_family.a_variable" name="a_family.an_other_family.a_variable">a_family.an_other_family.a_variable</a>**<br/>[`integer`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory` | A new variable.<br/>**Default**: the value of the variable "[`A root variable`](#a_variable)" |