/** Whether the user has opted in to auto-starting dictation. */
export declare function isVoiceAutoStartEnabled(): boolean;
/** Persists the user's auto-start preference. */
export declare function setVoiceAutoStartEnabled(enabled: boolean): void;
/** Marks auto-start as already fired in this browser. */
export declare function markVoiceAutoStartTriggered(): void;
export interface ShouldAutoStartVoiceOptions {
    /** Whether the user opted in via `isVoiceAutoStartEnabled()`. */
    enabled: boolean;
    /** Whether the browser/environment can actually run speech input. */
    isSpeechSupported: boolean;
    /** Whether dictation is already listening. */
    isListening: boolean;
}
/**
 * Pure decision of whether to auto-start dictation right now. Does not read
 * or write localStorage itself so it stays trivially testable; callers read
 * the "already triggered" flag and call `markVoiceAutoStartTriggered()`.
 */
export declare function shouldAutoStartVoice({ enabled, isSpeechSupported, isListening }: ShouldAutoStartVoiceOptions, alreadyTriggered: boolean): boolean;
/** Whether auto-start has already fired in this browser. */
export declare function hasVoiceAutoStartTriggered(): boolean;