text: from aiohttp.web import View
  import aiohttp_jinja2
  
  
  class Handler(View):
      async def get(self):
          context = {
              'title': 'Simple aiohttp Mapbox Vector Tiles server',
              'colors': []
          }
          response = await aiohttp_jinja2.render_template_async(
              'index.html',
              self.request,
              context,
              status=200
          )
          response.headers['Content-Language'] = 'ru'
          return response
  