Builds the serialized UI payload for an InputtingState.
This builder converts the internal input-method state into the compact JSON structure expected by concrete UI implementations.
Creates a builder for the given inputting state.
The inputting state to serialize for the UI layer.
Readonly
Builds the structured UI payload.
The UI payload before JSON serialization.
Builds the UI payload and returns it as a JSON string.
The serialized UI payload.
Builds the serialized UI payload for an InputtingState.
This builder converts the internal input-method state into the compact JSON structure expected by concrete UI implementations.