src/vs/workbench/contrib/notebook/browser/diff/diffElementViewModel.ts/DiffElementViewModelBase/saveSpirceEditorViewState
class DiffElementViewModelBase:	saveSpirceEditorViewState(viewState: editorCommon.ICodeEditorViewState | editorCommon.IDiffEditorViewState | null) {
		this._sourceEditorViewState = viewState;
	}