import { SpeechVoiceLike } from '../voice/speechVoices';
/** Vendor tier this catalogue describes; sent to the backend with each request. */
export declare const HOSTED_TTS_TIER = "chirp3-hd";
/**
 * Every hosted voice, as `SpeechVoiceLike` so it is interchangeable with a
 * device voice everywhere downstream.
 *
 * The vendor id form is `<vendor-locale>-Chirp3-HD-<Speaker>`, e.g.
 * `ta-IN-Chirp3-HD-Kore`. It is used as BOTH the display name and the id the
 * backend receives, because the persisted preference is keyed by name — a
 * separate display label would break a saved pick the first time it changed.
 *
 * `name` is therefore always the VENDOR's spelling (it is sent on the wire and
 * must exist), while `lang` is always the APP's (it is matched against
 * `SPEECH_LANG`). For every locale but Mandarin these are the same string.
 */
export declare const HOSTED_VOICES: readonly SpeechVoiceLike[];
/**
 * The exact vendor locale to request for an app tag, or null when the vendor
 * cannot speak the language at all.
 *
 * Prefers an exact match (`en-GB` stays `en-GB`, `zh-CN` becomes `cmn-CN`) and
 * otherwise falls back to the primary subtag's canonical vendor locale
 * (`ar-SA` -> `ar-XA`, `zh` -> `cmn-CN`).
 */
export declare function hostedLocaleFor(tag: string): string | null;
/**
 * True when the hosted engine can actually speak this language.
 *
 * The caller needs this to decide whether to fall back to the device engine
 * for a reply in a language the vendor does not cover, rather than sending a
 * request that can only fail.
 */
export declare function hostedSupportsLanguage(tag: string): boolean;
//# sourceMappingURL=hostedVoiceCatalogue.d.ts.map