[Python] Convert Unix timestamp returned from API in Python Flask app

I have got a Python Flask app that will get data from API and pass it to html template.

On html template I have following and I would like to convert the "insertionTime" from Unix timestamp to human readable format.

<div class="results">

{% if results %}
<h2>Results:</h2>
<ul>
{% for result in results %}
<li><strong>{{ result['id'] }}</strong><br>{{ result['insertionTime'] }}<br>{{ result['eventType'] }}<br>{{ result['activity'] }}</li>
<hr>
{% endfor %}
</ul>
{% else %}
<p>No results found.</p>
{% endif %}
</div>


I have added flask_moment and changed to the following but it throws AttributeError: 'int' object has no attribute '_render'

<br>{{ moment.unix(result['insertionTime']).format(LLL) }}<br>


Any help would be much appreciated, thank you.

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