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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def getLabel(self):
 """Returns symbolic path to this MIB variable. Meaning a sequence of symbolic identifications for each of parent MIB objects in MIB tree. Returns ------- tuple sequence of names of nodes in a MIB tree from the top of the tree towards this MIB variable. Raises ------ SmiError If MIB variable conversion has not been performed. Notes ----- Returned sequence may not contain full path to this MIB variable if some symbols are now known at the moment of MIB look up. Examples -------- ('iso', 'org', 'dod', 'internet', 'mgmt', 'mib-2', 'system', 'sysDescr') """

        if self._state & self.ST_CLEAN:
            return self._label

        else:
            raise SmiError(
                '%s object not fully initialized' % self.__class__.__name__)