/**
 * Translate a coach i18n key with optional param interpolation.
 * Falls back to 'en' when key is absent in the requested locale.
 * Emits a telemetry-style console warning for missing keys (non-en).
 */
export declare function t(key: string, params?: Record<string, unknown>, locale?: string): string;
/**
 * Clear the catalog cache — useful in tests.
 */
export declare function clearCatalogCache(): void;
//# sourceMappingURL=i18n.d.ts.map