You&#x27;re looking at a markdown-formatted docstring.  Note that it&#x27;s enclosed in &quot;&quot;&quot;, similar to Python except that it precedes the method definition.  Within the markdown formatting, you can use ``` fences to format code examples.<p>GitHub&#x27;s coloring here doesn&#x27;t quite make it as obvious as it can be.  Here&#x27;s how it renders at the REPL with the help system:  <a href="http:&#x2F;&#x2F;imgur.com&#x2F;rlAnpSK" rel="nofollow">http:&#x2F;&#x2F;imgur.com&#x2F;rlAnpSK</a>