[TArray](API\Runtime\Core\Containers\TArray)< [FAdderPinAction](API\Plugins\OptimusCore\IOptimusNodeAdderPinProvider\FAdderPinAction) > GetAvailableAdderPinActions ( const [UOptimusNodePin](API\Plugins\OptimusCore\UOptimusNodePin) * InSourcePin, [EOptimusNodePinDirection](API\Plugins\OptimusCore\EOptimusNodePinDirection) InNewPinDirection, [FString](API\Runtime\Core\Containers\FString) * OutReason ) const