namespace FNiagaraStackGraphUtilities { [TOptional](API\Runtime\Core\IO\TOptional)< [FMatchingFunctionInputData](API\Plugins\NiagaraEditor\ViewModels\Stack\FMatchingFunctionInputData) > FNiagaraStackGraphUtilities::FindAssignmentInputData ( const [UNiagaraNodeAssignment](API\Plugins\NiagaraEditor\UNiagaraNodeAssignment) & AssignmentNode, [FName](API\Runtime\Core\UObject\FName) VariableName, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FNiagaraEmitterViewModel](API\Plugins\NiagaraEditor\ViewModels\FNiagaraEmitterViewModel) > EmitterViewModel ) }