| **<aid="rougail.variable"name="rougail.variable">rougail.variable</a>**<br/>[`string`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `standard``mandatory` | A variable.<br/>**Default**: the value of the variable "[A variable](#extra.variable)" |
| **<aid="extra.variable"name="extra.variable">extra.variable</a>**<br/>[`string`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `standard``mandatory` | A variable.<br/>**Default**: value in extra |