chart datasets

hi,
we buy the metronic theme and i have difficult with the charts datasets.
in the docs its say const data = {
labels: labels,
datasets: [
...
]
};
but each chart has different dataset structure.
so I open the HTML file of the theme to check maybe there but I didn't understand where all the JS and data.

can you please point me to the right direction to understand the datasets issue or see some examples ?