Globally register plugins

[IronCrystal]

I am attempting to use coreui-vue-chartjs with custom plugins, such as the annotation plugin https://github.com/chartjs/chartjs-plugin-annotation

This plugin does not support inline plugin registration and must be globally registered.

I'm not sure how to access the instance of ChartJS that CChart component is using.

This does not seem to be working on my end:

import Chart  from 'chart.js/auto';
import annotationPlugin from 'chartjs-plugin-annotation';

Chart.register(annotationPlugin);