How to get ToolWindow view instance

How to get ToolWindow view instance?

i want to change data in ToolWindow view when AnAction completed

 i want to get the instance of FastRequestToolWindow,any suggestions?

public class FastRequestToolWindowFactory implements ToolWindowFactory {
    private GeneratorUrlService generatorUrlService = ServiceManager.getService(GeneratorUrlService.class);

    private FastRequestToolWindow window;
    @Override
    public void createToolWindowContent(@NotNull Project project, @NotNull ToolWindow toolWindow) {
        window = new FastRequestToolWindow(toolWindow);
        ContentFactory contentFactory = ContentFactory.SERVICE.getInstance();
        //displayName="" let content in first tab
        Content content = contentFactory.createContent(window.getContent(), "", false);
        toolWindow.getContentManager().addContent(content);

    }

    public FastRequestToolWindow getWindow(){
        return window;
    }

}