* or as map, which contains all key/value pairs:
<pre class="brush:xquery">
map { 'separator': ';', ... }
</pre>
'''Query:'''
<pre class="brush:xquery">
let $options := map { 'merge': true() }
return json:parse('{
"first_name": "John",
'''Query:'''
<pre class="brush:xquery">
json:serialize(<xml/>, map { 'format': 'jsonml' })
</pre>
'''Query:'''
<pre class="brush:xquery">
json:serialize(doc('flickr.xml'), map { 'format': 'jsonml' })
</pre>
'''Query:'''
<pre class="brush:xquery">
json:serialize(doc('input.xml'), map { 'format': 'jsonml' })
</pre>