/**
 * Marker for pre-recorded phrase rows loaded from the Voctiv platform LE PostgreSQL DB
 * ({@link PlatformApi.getRecords}). Pass to {@link ChannelAudio.play} instead of a URL/path string.
 *
 * Only used when Voctiv platform compatibility mode is enabled and the server has resolved
 * a trusted LE agent id/UUID plus `LEGACY_V3_RECORD_PHRASE_ROOT`.
 */
export declare const LEGACY_PHRASE_RECORD_BRAND: "__legacyPhraseRecord";
export interface LegacyPhraseRecord {
    readonly [LEGACY_PHRASE_RECORD_BRAND]: true;
    /** Absolute filesystem path passed to the audio decoder (same layout as old logic-executor `nv.say`). */
    readonly path: string;
    /** Phrase transcript / label from DB. */
    readonly text: string;
    /** Phrase name (`record_phrase.name`). */
    readonly phraseName: string;
}
export declare function isLegacyPhraseRecord(source: unknown): source is LegacyPhraseRecord;
/** Parameters for {@link PlatformApi.getRecords} (Voctiv platform LE `RecordPhrase` / `record_phrase_file`). */
export interface LegacyGetRecordsParams {
    /** Phrase group/name (`record_phrase.name`). */
    phraseName: string;
    /** Business flag used by the phrase catalog, normally `context.flag`. */
    flag: string;
    /** Language key used by the phrase catalog, normally `context.language`. */
    language: string;
}
/**
 * Extended cache options: TTS cache **plus** persist into `record_phrase` / `record_phrase_file`
 * on the Voctiv platform so {@link PlatformApi.getRecords} can retrieve the audio later.
 *
 * Only the persist part requires platform compatibility mode, `LEGACY_V3_RECORD_PHRASE_ROOT`,
 * and a resolved LE agent id/UUID. The TTS file cache itself works in any mode.
 */
export interface CacheOptions {
    /**
     * Phrase group/name to create or update in `record_phrase`.
     * Defaults to `_cache` when omitted (same phrase used by the internal TTS cache in legacy mode).
     */
    phraseName?: string;
    /** Defaults to dialog `flag` from channel params when omitted. */
    flag?: string;
    /** Defaults to dialog language from channel params when omitted. */
    language?: string;
}
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