Expected behavior Bar chart is rendered with value labels inside each bar

Actual behavior According to an answer to this question https://mdbootstrap.com/support/jquery/charts-has-anyone-implemented-datalabels/ the datalabels plugin has been implemented into mdb, but I can't find any documentation of it. The only place where this is mentioned is the "Funnel" example in this page https://mdbootstrap.com/docs/standard/data/charts-advanced/#example1

There I can see that a "dataLabelsPlugin: true" option has been added in js, but actually labels are not shown in the example chart.

You can also visit the snippet taken straight from the above example page https://mdbootstrap.com/snippets/standard/gucciardi/6125382

Do you have any hint on why this plugin is not working?

Resources (screenshots, code snippets etc.)