[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FEntityCreationContext](API\Plugins\MassEntity\FMassEntityManager\FEntityCreationContext) > BatchCreateReservedEntities ( const [FMassArchetypeHandle](API\Plugins\MassEntity\FMassArchetypeHandle) & ArchetypeHandle, TConstArrayView< [FMassEntityHandle](API\Plugins\MassEntity\FMassEntityHandle) > OutEntities )