how to collectstatic in an offline environment

[Etuloser]

in this file: https://github.com/vishalanandl177/DRF-API-Logger/blob/master/drf_api_logger/templates/charts_change_list.html

you use two online file

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.bundle.min.js"></script>

The page cannot be displayed correctly in the offline environment, how to fix it.

thanks.