><span class="identifier">clientKey</span><span>
        ))
        .</span><span class="identifier">mapError</span><span>: </span><span class="identifier">err</span><span> =&gt;
          </span><span class="type-name">CustomError</span><span>(
            </span><span class="string-literal">s&quot;Error while get Accounts: </span><span class="substitution">${err.errorMsg}</span><span class="string-literal">&quot;</span><span>
          )</span></code></pre>
        <p>Simply use <code>mapError</code> to m