func appAddress(app: Prologue): string {.inline, ...raises: [], tags: [], forbids: [].}
func appDebug(app: Prologue): bool {.inline, ...raises: [], tags: [], forbids: [].}
func appName(app: Prologue): string {.inline, ...raises: [], tags: [], forbids: [].}
func appPort(app: Prologue): Port {.inline, ...raises: [], tags: [], forbids: [].}