/** @internal */
export interface UniqueRegistrationOptions<TValue> {
    /** @internal */
    duplicateMessage: string;
    /** @internal */
    validate?: (value: TValue) => void;
}
/** @internal */
export declare function registerUnique<TKey, TValue>(registry: Map<TKey, TValue>, key: TKey, value: TValue, options: UniqueRegistrationOptions<TValue>): void;
/** @internal */
export declare function cloneMap<TKey, TValue>(registry: ReadonlyMap<TKey, TValue>): Map<TKey, TValue>;
/** @internal */
export declare function cloneArrayValueMap<TKey, TValue>(registry: ReadonlyMap<TKey, readonly TValue[]>): Map<TKey, readonly TValue[]>;
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