<root-XML localName="ONIXMessage"/>
    <sub-class-of type="application/xml"/>
  </mime-type>

  <mime-type type="application/onix-message-short+xml">
    <_comment>ONline Information eXchange (ONIX) for books</_comment>
    <!-- see https://www.loc.gov/preservation/digital/formats/fdd/fdd000488.shtml -->
    <root-XML localName="ONIXMessage" namespaceURI="http://ns.editeur.org/onix/3.0/reference"/>

followed by the lowercase letter <code>i</code>.
The value of an imaginary literal is the value of the respective
integer or floating-point literal multiplied by the imaginary unit <i>i</i>
[<a href="#Go_1.13">Go 1.13</a>]
</p>

<pre class="ebnf">
imaginary_lit = (decimal_digits | int_lit | float_lit) "i" .
</pre>

<p>