src/vs/workbench/contrib/notebook/browser/notebookDiffEditorInput.ts/NotebookDiffEditorInput/toUntyped
class NotebookDiffEditorInput:	override toUntyped(): IResourceDiffEditorInput & IResourceSideBySideEditorInput {
		const original = { resource: this.original.resource };
		const modified = { resource: this.resource };
		return {
			original,
			modified,
			primary: modified,
			secondary: original,
			options: {
				override: this.viewType
			}
		};
	}