Adds parameter information.
Common use:
@params {TYPE} name description
Optional parameters use case:
@params {TYPE} [name] description
Default value use case:
@params {TYPE} [name=default] description
/*
* Finds an order by id.
* @param {String} id Order identification number.
* @param {Date} [date] Filter order search by this date.
*/
findById: function(id, date) {
// looks for an order by id
}