-scala"><code><span class="token keyword">val</span> i<span class="token operator">:</span> GraphQLInterpreter<span class="token punctuation">[</span>MyEnv<span class="token punctuation">,</span> CalibanError<span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token operator">?</span><span class="token operator">?</span><span class="token operator">?</span>

<span class="token comment">// change error type to String</span>
<span class="token keyword">val</span> i2<span