/**
 * Translation value processing utilities
 * Handles simple strings, nested objects, pluralization, and context
 */
/**
 * ✅ Resolve nested key path in translation object
 */
/**
 * ✅ Resolve nested key from namespace object
 * Examples:
 * - resolveNestedKey({user: {profile: {name: "John"}}}, "user.profile.name") → "John"
 * - resolveNestedKey({items: [{name: "Apple"}]}, "items[0].name") → "Apple"
 * - resolveNestedKey({welcome: "Hello"}, "welcome") → "Hello"
 */
export declare function resolveNestedKey(namespace: Record<string, unknown>, keyPath: string): unknown;
/**
 * ✅ Parse key path into array of keys/indices
 * Examples:
 * - "user.profile.name" → ["user", "profile", "name"]
 * - "items[0].name" → ["items", 0, "name"]
 * - "settings.ui.theme" → ["settings", "ui", "theme"]
 */
export declare function parseKeyPath(keyPath: string): (string | number)[];
/**
 * ✅ Create individual cache key: locale:namespace:key
 */
export declare function createIndividualCacheKey(locale: string, namespace: string | undefined, key: string): string;
/**
 * ✅ Create namespace cache key: @locale:namespace
 */
export declare function createNamespaceCacheKey(locale: string, namespace: string): string;
/**
 * ✅ Check if key is namespace cache entry
 */
export declare function isNamespaceCacheKey(key: string): boolean;
/**
 * ✅ Parse namespace cache key
 */
export declare function parseNamespaceCacheKey(key: string): {
    locale: string;
    namespace: string;
} | null;
/**
 * ✅ Parse individual cache key
 */
export declare function parseIndividualCacheKey(key: string): {
    locale: string;
    namespace?: string;
    translationKey: string;
} | null;
/**
 * ✅ Flatten nested translations for caching individual keys
 * Handles both ICU MessageFormat strings and structured objects
 * Stores full ContentUnit as JSON - includes both text and styles
 */
export declare function flattenTranslations(translations: Record<string, unknown>, prefix: string | undefined, locale: string, namespace: string): Record<string, string>;
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