title: Guzzle parameters multiple array
body: <p>I have curl request: </p>
  
  <pre><code>curl http://example.com/json/get_products_by_multifilter -d '{"multifilter":{"limit":5}}'
  </code></pre>
  
  <p>My Guzzle code:</p>
  
  <pre><code>    $client = new GuzzleHttp\Client();
  
      $request = $client-&gt;createRequest(
          'POST',
          'http://example.com/json/get_products_by_multifilter',
          array('multifilter' =&gt; array('limit' =&gt; 1))
      );
      $response = $client-&gt;send($request);
  
      echo $response-&gt;getBody();
  </code></pre>
  
  <p>I getting error: </p>
  
  <p><strong>[InvalidArgumentException]<br>
    No method can handle the multifilter config key</strong> </p>
  
  <p>What is wrong with my code, how to mase multiple array as a parameters ? </p>