@begin_time.setter<EOL><INDENT>def begin_time(self, begin_time):<DEDENT>
self._begin_time = begin_time<EOL>
Sets the begin_time of this SearchCatalogObjectsRequest.
Return objects modified after this [timestamp](#workingwithdates), in RFC 3339 format, e.g., \"2016-09-04T23:59:33.123Z\". The timestamp is exclusive - objects with a timestamp equal to `begin_time` will not be included in the response.

:param begin_time: The begin_time of this SearchCatalogObjectsRequest.
:type: str