@described_object.setter<EOL><INDENT>def described_object(self, described_object):<DEDENT>
if described_object is None:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>self._described_object = described_object<EOL>
Sets the described_object of this V2beta2ObjectMetricSource.

:param described_object: The described_object of this V2beta2ObjectMetricSource.
:type: V2beta2CrossVersionObjectReference