 "hello"
let s = Bytes.of_string "hello"
    </pre>
<p>The first declaration is incorrect, because the string literal
    <code class="code">"hello"</code> could be shared by the compiler with other parts of the
    program, and mutating <code class="code">incorrect</code> is a bug. You must always use
    the second version, which performs a copy and is thus correct.</p>

<p>Assuming unique ownership of strings that are not string
    literals, but are (partly) built from string literals, is also
    incor