code class="language-go">opt<span class="token punctuation">,</span> err <span class="token operator">:=</span> nats<span class="token punctuation">.</span><span class="token function">NkeyOptionFromSeed</span><span class="token punctuation">(</span><span class="token string">&quot;seed.txt&quot;</span><span class="token punctuation">)</span>
<span class="token keyword">if</span> err <span class="token operator">!=</span> <span class="token boolean">nil</span> <span class="token punctuation">{</span>
	log<s