/**
 * Localized copy for everything this plugin puts in front of a person.
 *
 * The harness renders none of a third-party schema's descriptions — the
 * provider editor is hand-written React with its own bundled copy — so the
 * plugin's user-facing surface is exactly two things: the names of its entries
 * in the model picker, and the failure text a refused call shows. Those are
 * what this module translates.
 *
 * The browser client only lets a user *choose* `en` or `zh`
 * (`dsh-client-locale` ships those two), so `language: 'auto'` follows that
 * choice, and the other five locales are reachable by naming one explicitly in
 * this plugin's settings.
 *
 * Log lines stay English on purpose: they are diagnostics that end up in
 * issues and grep, not UI copy.
 */
/** Every locale this plugin ships copy for. */
export declare const LOCALES: readonly ["en", "ru", "zh", "de", "fr", "es", "tr"];
/** One shipped locale. */
export type Locale = (typeof LOCALES)[number];
/** The locale used when nothing else resolves. */
export declare const FALLBACK_LOCALE: Locale;
/** Message keys this plugin translates. */
export type MessageKey = 'entry.auto' | 'entry.auto-cost-saver' | 'entry.auto-balanced' | 'entry.auto-quality-first' | 'error.noProvider' | 'error.refused';
/**
 * Whether `value` names a locale this plugin ships copy for.
 * @param value - a candidate locale id, from settings or the harness.
 * @returns true when the value can be used as a {@link Locale}.
 */
export declare function isLocale(value: unknown): value is Locale;
/**
 * One translated message with its `{placeholders}` filled in.
 *
 * A locale never falls back per key: every locale carries every key, so a
 * partially translated release cannot leak English into the middle of a
 * sentence. Only an unknown locale falls back, and it falls back whole.
 * @param locale - the resolved locale.
 * @param key - the message to render.
 * @param params - values for the `{name}` placeholders in that message.
 * @returns the rendered message.
 */
export declare function translate(locale: Locale, key: MessageKey, params?: Record<string, string>): string;
/**
 * The localized label for one of this plugin's own catalog entries.
 * A user-added entry has no shipped copy and keeps whatever name it configures.
 * @param locale - the resolved locale.
 * @param id - the catalog entry id.
 * @returns the label, or `undefined` for an entry this plugin does not ship.
 */
export declare function entryLabel(locale: Locale, id: string): string | undefined;