text: from flask import Blueprint, render_template, current_app
  import re
  
  index = Blueprint('index', __name__)
  
  
  @index.route('/')
  def show_index():
      ui_urls = []
      uire = re.compile(r'/ui/$')  # Define the regex pattern that matches UI's
      title = 'Index'
      all_urls = current_app.url_map  # This iterable object knows all registered urls
      for current_url in all_urls.iter_rules():
          if uire.findall(current_url.rule):  # Check against the pattern
              ui_urls.append(current_url.rule)  # On match, we add this url to our ui url list
      return render_template('index.j2.html', title=title, ui_urls=ui_urls)
  