struct InitializedEvent

This event indicates that the debug adapter is ready to accept configuration

requests (e.g. `setBreakpoints`, `setExceptionBreakpoints`). A debug adapter

is expected to send this event when it is ready to accept configuration

requests (but not before the `initialize` request has finished). The sequence

of events/requests is as follows:

- adapters sends `initialized` event (after the `initialize` request has

returned)

- client sends zero or more `setBreakpoints` requests

- client sends one `setFunctionBreakpoints` request (if corresponding

capability `supportsFunctionBreakpoints` is true)

- client sends a `setExceptionBreakpoints` request if one or more

`exceptionBreakpointFilters` have been defined (or if

`supportsConfigurationDoneRequest` is not true)

- client sends other future configuration requests

- client sends one `configurationDone` request to indicate the end of the

configuration.