export type TranslationKey = string;
export type TranslationLeaf<Value> = {
    [key in TranslationKey]: Value;
};
export type TranslationPrimitiveValue = string | number | boolean;
export type TranslationArrayValue = TranslationPrimitiveValue[];
export type TranslationTreeValue = TranslationPrimitiveValue | TranslationArrayValue | TranslationTree;
export interface TranslationTree extends TranslationLeaf<TranslationTreeValue> {
}
export type TranslationCacheValue = TranslationLeaf<TranslationPrimitiveValue | TranslationArrayValue> & {
    valid: boolean;
};
type TranslationWalkType = 'leaf' | 'array' | 'primitive' | 'null';
type TranslationWalker<A, B, R> = (a: A, aType: TranslationWalkType, b: B, bType: TranslationWalkType) => R;
type TranslationWalkerSingle<A, R> = (value: A, type: TranslationWalkType) => R;
export declare function walkTree<A, R>(tree: TranslationLeaf<A>, walker: TranslationWalkerSingle<A, R>): TranslationLeaf<R>;
export declare function walkTree<A, B, R>(a: TranslationLeaf<A>, b: TranslationLeaf<B>, walker: TranslationWalker<A, B, R>): TranslationLeaf<R>;
export {};