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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 getOid(self):
 """Returns OID identifying MIB variable. Returns ------- : :py:class:`~pysnmp.proto.rfc1902.ObjectName` full OID identifying MIB variable including possible index part. Raises ------ SmiError If MIB variable conversion has not been performed. Examples -------- ObjectName('1.3.6.1.2.1.1.1.0') """

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

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