e of two things: either a string,
which represents text to be included in the snippet, or an array,
which represents an HTML tag to be included.  In the latter case, the
array consists of three items: a string that is the tag name (e.g.,
&#8220;img&#8221;), an optional object that gives attributes for the tag (as
described below), and an optional HTML snippet array that gives the
contents of the tag.</p>
<p>When attributes are provided, they are given as <cite>name:value</cite> pairs,
with the <cite>name</c