chart.js Annotation Plugin - multiline annotations

Question

I have created a graph using react-chartjs-2 with annotation plugin. The documentation simply states:

// Text to display in label - default is null. Provide an array to display values on a new line
        content: "Test label",

Does this mean I can have each value in the array in a separate line? When I use it, all the values are printed as one comma-separated line.

my code:

label: {
        //...
        content: ['aaa','bbb','ccc'],
        //...
}