Gone through the article "SPFx Cascading Dropdown In Property Pane" by Chandhani maan. I am trying to implement the same in SharePoint 2019 version, but when I declare '@microsoft/sp-property-pane' and ''@microsoft/sp-webpart-base'', i am facing the "error Property 'getPropertyPaneConfiguration' in type 'PnpCascadingWebPart' is not assignable to the same property in base type 'BaseClientSideWebPart<IPnpCascadingWebPartProps>'". Can someone provide me a solution I need to know whether propertypaneconfiguration can be implemented in sp 2019