I have a dashboard containing several charts. We also added filtering (which is complex and I had to build my own UI, which seems redundant - see https://feedback.mongodb.com/forums/923524-charts/suggestions/43736778-embedding-charts-with-filter-ui). In some cases, the user could create filters that end up filtering out all of the data. Strangely, this causes all of the charts in the dashboard to render completely blank. I would expect that, for example, a table would have all of its data replaced with zeroes, and a map might show without any of the countries being shaded. But instead, it's all blank, with no message of any kind. To deal with this case, I had to jump through several hoops. First, there is no event that I can find (and I read through the source!) that we can hook into that fires when data for each chart is downloaded. As the documentation specifies, when you call `render()` on a `Dashboard` object in the SDK, even after I `await` the call, `getData` on the `Dashboard`'s Chart objects will return an empty array. Considering this has no workaround in the documentation, I'd call that a bug, but it's related to this request. So, I set a timer with `setInterval` so that every second, I iterate over all the charts in the dashboard and call `getData()` on each one. If, at some point, the `getData()` calls returned some data, and now they no longer do, then I hide the entire dashboard and replace it with a message that says that the filters don't match any data. This was more code than I had to write in order to embed the whole dashboard! Please provide some workaround.