function getTestRequestCodeBlock(language, vars) {
        switch (language) {
          case 'nodejs':
            return `
      <span class="hljs-keyword">import</span> Portkey <span class="hljs-keyword">from</span> <span class="hljs-string">'portkey-ai'</span>

      <span class="hljs-keyword">const</span> portkey = <span class="hljs-keyword">new</span> Portkey({
        <span class="hljs-attr">provider</span>: <span class="hljs-string">"<span class="highlighted-value ${vars.provider ? 'filled' : 'empty