kSurfaceArtifactFetchFailedEventName top-level constant
String
const kSurfaceArtifactFetchFailedEventName
The canonical name for "a delivery resolved but its content never arrived".
Named here, beside the registry, so the emitter and the registration cannot be two different strings that look alike.
Implementation
const String kSurfaceArtifactFetchFailedEventName =
'surface_artifact_fetch_failed';