@last_observed_time.setter<EOL><INDENT>def last_observed_time(self, last_observed_time):<DEDENT>
if last_observed_time is None:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>self._last_observed_time = last_observed_time<EOL>
Sets the last_observed_time of this V1beta1EventSeries.
Time when last Event from the series was seen before last heartbeat.

:param last_observed_time: The last_observed_time of this V1beta1EventSeries.
:type: datetime