The {{Code|csv}} and {{Code|json}} parameters are supplied with a list of options. Option names and values are combined with <code>=</code>, several options are separated by <code>,</code>:
'''Query''':
<pre class="brush:xquery">
(: The output namespace declaration is optional, because it is statically declared in BaseX) :)
If {{Code|fn:serialize}} is called, output-specific parameters can be supplied via nested options:
'''Query (Variant 2)''':
<pre class="brush:xquery">
serialize(