* also which print function are linked.
* If you choose a low level of log you link all log function (error, warning and info),
* but if choose a hight level you link only that have the priority egual or hight.
* also which print function are linked.
* If you choose a low level of log you link all log function (error, warning and info),
* but if choose a hight level you link only that have the priority egual or hight.