code: def configure_show_sidebar_nav():
      """Configure client.showSidebarNavigation=False."""
      # We need to do this in a package scope fixture to ensure that its applied
      # before the app server is started.
      os.environ["STREAMLIT_CLIENT_SHOW_SIDEBAR_NAVIGATION"] = "False"
      yield
      del os.environ["STREAMLIT_CLIENT_SHOW_SIDEBAR_NAVIGATION"]
  
imports: import os
  import pytest
  from playwright.sync_api import Page, expect
label_desc: Use image node_id 1 for calling a global function with example usage: configure_show_sidebar_nav() without return types