export declare const REALTIME_DICTATION_VERSION: 1;
export declare const DICTATION_MAX_FRAME_BYTES = 3200;
export declare const DICTATION_MAX_BUFFER_BYTES: number;
export declare const DICTATION_MAX_TEXT_LENGTH = 20000;
export declare const DICTATION_MAX_MILLIS = 120000;
export interface RealtimeDictationSnapshot {
    version: typeof REALTIME_DICTATION_VERSION;
    streamRef: string;
    phase: 'listening' | 'finishing' | 'finished' | 'failed';
    /** Full hypothesis for this stream, including revisions; never append it as a delta. */
    text: string;
    revision: number;
    error?: {
        code: string;
        message: string;
        retryable: boolean;
    };
}
export type RealtimeDictationRequest = {
    action: 'start';
    expectedUserId: number;
} | {
    action: 'audio';
    streamRef: string;
    pcm: string;
} | {
    action: 'status' | 'finish' | 'cancel';
    streamRef: string;
};
export interface RealtimeDictationHandle {
    send(pcm: ArrayBuffer): void;
    finish(): void;
    dispose(): void;
}
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