FNiagaraParameterDefinitionsPanelItem ( const [UNiagaraScriptVariable](API\Plugins\NiagaraEditor\UNiagaraScriptVariable) * InScriptVariable, const [FNiagaraNamespaceMetadata](API\Plugins\NiagaraEditor\FNiagaraNamespaceMetadata) & InNamespaceMetaData, const [FText](API\Runtime\Core\Internationalization\FText) & InParameterDefinitionsNameText, const [FGuid](API\Runtime\Core\Misc\FGuid) & InParameterDefinitionsUniqueId )