docs: async def postback_analytics(msg: BaseMessage, platform: Platform) -> Response:
      """
      Makes a call to an analytics function.
      """
  
      try:
          pb = msg.get_layers()[0]
          assert isinstance(pb, Postback)
  
          user = msg.get_user()
          user_lang = await user.get_locale()
          user_id = user.id
  
          if pb.payload['event'] == 'page_view':
              func = 'page_view'
              path = pb.payload['path']
              title = pb.payload.get('title', '')
              args = [path, title, user_id, user_lang]
          else:
              return json_response({
                  'status': 'unknown event',
                  'message': f'"{pb.payload["event"]}" is not a recognized '
                             f'analytics event',
              })
  
          async for p in providers():
              await getattr(p, func)(*args)
  
      except (KeyError, IndexError, AssertionError, TypeError):
          return json_response({
              'status': 'missing data'
          }, status=400)
  
      else:
          return json_response({
              'status': 'ok',
          })