namespace FNiagaraStackGraphUtilities { [TOptional](API\Runtime\Core\IO\TOptional)< [FMatchingFunctionInputData](API\Plugins\NiagaraEditor\ViewModels\Stack\FMatchingFunctionInputData) > FNiagaraStackGraphUtilities::FindInputData ( const [UNiagaraNodeFunctionCall](API\Plugins\NiagaraEditor\UNiagaraNodeFunctionCall) & FunctionCallNode, [FNiagaraHierarchyIdentity](API\Plugins\NiagaraEditor\ViewModels\HierarchyEditor\FNiagaraHierarchyIdentity) InputIdentity, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FNiagaraEmitterViewModel](API\Plugins\NiagaraEditor\ViewModels\FNiagaraEmitterViewModel) > EmitterViewModel ) }