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(mongodb >=1.13.0)
MongoDB\Driver\Monitoring\SDAMSubscriber::topologyOpening — Notification method for opening the topology
$event
): voidIf the subscriber has been registered, the driver will call this method when the topology is opened.
event
(MongoDB\Driver\Monitoring\TopologyOpeningEvent)An event object encapsulating information about the opened topology.
値を返しません。