Set the id of the given reftrack

        This will set the id on the refobject

        :param identifier: the identifier number
        :type identifier: int
        :returns: None
        :rtype: None
        :raises: None

def set_id(self, identifier):
        """Set the id of the given reftrack

        This will set the id on the refobject

        :param identifier: the identifier number
        :type identifier: int
        :returns: None
        :rtype: None
        :raises: None
        """
        self._id = identifier
        refobj = self.get_refobj()
        if refobj:
            self.get_refobjinter().set_id(refobj, identifier)