How can I get data from a row selected in a lightning data table? I was looking at [this post](https://salesforce.stackexchange.com/questions/273550/how-to-get-selected-row-data-from-lightning-datatable-in-salesforce-lwc) but it doesn't seem like the playground linked in the answer is working so I cannot see the helper method. The first answer for that uses a custom table and I would like to stick to using the lightning datatable. Does anyone have any examples? I would like to get the recordId's of the records selected, to be specific.