code: def navigation_zone() -> ui.Zone:
      """Returns the navigation zone"""
  
      zone = ui.zone(
          "navigation",
          size="13%",
          zones=[
              ui.zone(name="nav", size="99.5%"),
          ],
      )
  
      return zone
  
imports: from typing import List, Optional
  from h2o_wave import ui
label_desc: Use image node_id 2 for calling a global function with example usage: navigation_zone() and returns: zone