How to use the @theia/editor/lib/browser.EditorCommands.CONFIG_INDENTATION function in @theia/editor

protected setConfigTabSizeWidget(): void {
        const editor = this.editorManager.currentEditor;
        const editorModel = this.getModel(editor);
        if (editor && editorModel) {
            const modelOptions = editorModel.getOptions();
            const tabSize = modelOptions.tabSize;
            const useSpaceOrTab = modelOptions.insertSpaces ? 'Spaces' : 'Tab Size';
            this.statusBar.setElement('editor-status-tabbing-config', {
                text: `${useSpaceOrTab}: ${tabSize}`,
                alignment: StatusBarAlignment.RIGHT,
                priority: 10,
                command: EditorCommands.CONFIG_INDENTATION.id,
                tooltip: 'Select Indentation'
            });
        }
    }
    protected removeConfigTabSizeWidget(): void {

protected registerEditorCommandHandlers(): void {
        this.registry.registerHandler(EditorCommands.SHOW_REFERENCES.id, this.newShowReferenceHandler());
        this.registry.registerHandler(EditorCommands.CONFIG_INDENTATION.id, this.newConfigIndentationHandler());
        this.registry.registerHandler(EditorCommands.CONFIG_EOL.id, this.newConfigEolHandler());
        this.registry.registerHandler(EditorCommands.INDENT_USING_SPACES.id, this.newConfigTabSizeHandler(true));
        this.registry.registerHandler(EditorCommands.INDENT_USING_TABS.id, this.newConfigTabSizeHandler(false));
    }