Complications in WidgetKit .accessoryCorner does not support previous functionality ClockKit

For almost a year now, it has been impossible to switch to a new tool, due to the lack of functionality of the old version. I mean the lack of the ability to create a normal angular layout (when there is a view progress, and an inscription is curved above it). Maybe I'm doing something wrong, but I didn't manage to create something similar to a standard complication. Please provide an example of how standard complications of this type were implemented and how to make it use SwiftUI.