It seems we recently made a change to track hello metrics on a per-transport layer level, instead of overall in the service context. We also recently added a utility function to reset hello metrics on all transport layers (resetNumAwaitingTopologyChangesForAllSessionManagers). However, throughout the code base we currently still call resetNumAwaitingTopologyChanges instead of the new function, which is leading to some incorrect metrics. We should made resetNumAwaitingTopologyChanges a private function and instead call resetNumAwaitingTopologyChangesForAllSessionManagers wherever applicable.