an class="Identifier">JsonNode</span><span class="Other">;</span>
          <span class="Identifier">columns</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Other">(</span><span class="Identifier">string</span><span class="Other">,</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">timeout</span><span class="Other">:</span> <span class="Identi