/**
 * Optional content a push carries only when it fits. Internal to the push
 * envelope builders; not part of the package's public surface.
 */
import type { NotificationDraftT, QuestionT } from './notification.js';
/** True when some closed choice of this request carries a description. */
export declare function hasChoiceDescriptions(draft: NotificationDraftT): boolean;
/**
 * The questions as every push carries them: choice descriptions are left out,
 * because they are optional content that may not fit. `has_choice_descriptions`
 * says they exist, and the renderers add them back when they fit.
 */
export declare function pushedQuestions(questions: readonly QuestionT[]): QuestionT[];
export declare function utf8Bytes(value: unknown): number;
/**
 * Optional content that rides in a push only when it fits, as a function of
 * a candidate custom key: choice descriptions first (they sit on the answer
 * controls an expanded notification shows), then the Markdown Body. Shared by
 * the APNs and FCM renderers. `fits` sees the complete payload as sent.
 * Null when nothing fits, so the rendered payload stays exactly as built.
 */
export declare function withFittingContent(notifai: Record<string, unknown>, draft: NotificationDraftT, fits: (candidate: Record<string, unknown>) => boolean): Record<string, unknown> | null;