>Throwable</a><span class="token operator">?</span><span class="token operator">&gt;</span><span class="token punctuation">, </span></span><span class="parameter ">request<span class="token operator">: </span><a href="../-req-fn/index.html">ReqFn</a><span class="token operator">&lt;</span><a href="index.html">TParams</a><span class="token operator">&gt;</span><span class="token punctuation">, </span></span><span class="parameter ">mutate<span class="token operator">: </span><a href="../-mutate-fn/index.html