    # File lib/fog/aws/requests/glacier/list_vaults.rb, line 20
            def list_vaults(options={})
              account_id = options.delete('account_id') || '-'
              path = "/#{account_id}/vaults"
              request(
                :expects  => 200,
                :idempotent => true,
                :headers => {},
                :method   => 'GET',
                :path     => path,
                :query => options
              )
            end