const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FNiagaraGraphCachedDataBase](API\Plugins\Niagara\FNiagaraGraphCachedDataBase), ESPMode::ThreadSafe > & GetCachedTraversalData ( const [FGuid](API\Runtime\Core\Misc\FGuid) & EmitterVersion ) const