from textual.app import App
from textual.widgets import ScrollView, TabView, Tab

class SimpleCLITool(App):
    async def on_mount(self):
        # Create TabView with two tabs
        tabs = TabView(
            tabs=[
                Tab("First Tab", content=ScrollView(auto_width=True)),
                Tab("Second Tab", content=ScrollView(auto_width=True))
            ]
        )

        # Update content for each tab
        tabs.tabs[0].content.update("This is the content of the first tab. " * 10)
        tabs.tabs[1].content.update("This is the content of the second tab. " * 10)

        # Dock the tabs into the app's view
        await self.view.dock(tabs)

SimpleCLITool.run(log="textual.log")