[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="CustomizablePopulation") int32 GeneratePopulation ( [TArray](API\Runtime\Core\Containers\TArray)< [UCustomizableObjectInstance](API\Plugins\CustomizableObject\MuCO\UCustomizableObjectInstance) * > & OutInstances, int32 NumInstancesToGenerate ) const