Can you share a sample of code, its equivalent sequence diagram, and how one is converted to the other please? I see that the samples have caller->method() style code, but how is this a sequence diagram? And where's the actual bidi mapping?

To be clear: I'm not critical; its good that ballerina attempts to bridge the visualization and the implementation. I'd like to see an actual sample, though.

Edit: Never mind, found the other poster who discovered your IDE plugin that shows the sequence diagram equivalent. Not sure how this is part of the language, though.