code: def test_default_selection_first_tab(
      app: Page, assert_snapshot: ImageCompareFunction
  ):
      """Test st.tabs has first tab selected as default."""
      assert_snapshot(app.locator(".stTabs"), name="tabs-default")
  
file_path: streamlit/e2e_playwright/st_tabs_selection_test.py
imports: from playwright.sync_api import Page, expect
  from e2e_playwright.conftest import ImageCompareFunction, wait_for_app_run
label_desc: Use image node_id 1 for calling a global function with example usage: test_default_selection_first_tab(app, assert_snapshot) without return types