docs: def group_push(name, app, weight, **kwargs):
      """
      Add application with its weight into the routing group.
  
      Warning: application weight must be positive integer.
      """
      ctx = Context(**kwargs)
      ctx.execute_action('group:app:add', **{
          'storage': ctx.repo.create_secure_service('storage'),
          'name': name,
          'app': app,
          'weight': weight,
      })