 the form of requiring
that all delimiters be balanced.</p>

<h2 id='--for-function-return-type' class='section-header'><a href='#--for-function-return-type'>2.2 <code>-&gt;</code> for function return type</a></h2>
<p>This is to make the language easier to parse for humans, especially in the face
of higher-order functions. <code>fn foo&lt;T&gt;(f: fn(i32): i32, fn(T): U): U</code> is not
particularly easy to read.</p>

<h2 id='why-is-let-used-to-introduce-variables' class='section-header'><a href='#why-is-l