import type { Fn2, IObjectOf, Maybe, Pair } from "@thi.ng/api";
export declare class TrieMap<T> {
    next: IObjectOf<TrieMap<T>>;
    val?: T;
    protected n: number;
    constructor(pairs?: Iterable<Pair<string, T>>);
    get size(): number;
    [Symbol.iterator](): Generator<Pair<string, T>, void, unknown>;
    keys(prefix?: string, includePrefix?: boolean): Generator<string, void, unknown>;
    values(prefix?: string): Generator<NonNullable<T>, void, unknown>;
    entries(prefix?: string, includePrefix?: boolean): Generator<Pair<string, T>, void, unknown>;
    clear(): void;
    has(key: string): boolean;
    hasPrefix(prefix: string): boolean;
    get(key: string, notFound?: T): Maybe<T>;
    find(key: string): TrieMap<T> | undefined;
    /**
     * Returns longest known prefix for `key`. Returns undefined if given key
     * has no partial matches.
     *
     * @param key -
     */
    knownPrefix(key: string): string | undefined;
    hasKnownPrefix(key: string): boolean;
    set(key: string, val: T): void;
    into(pairs: Iterable<Pair<string, T>>): void;
    delete(prefix: string): boolean;
    protected iterate<V>(fn: Fn2<string, TrieMap<T>, V>, prefix?: string, includePrefix?: boolean): Generator<V, void, unknown>;
}
export declare const defTrieMap: <T>(pairs?: Iterable<Pair<string, T>>) => TrieMap<T>;
export type SerializedTrieMap<T> = {
    next: IObjectOf<SerializedTrieMap<T>>;
    val?: T;
};
/**
 * Reconstruct a {@link MultiTrie} from serialized JSON.
 *
 * @param src
 * @param opts
 */
export declare const defTrieMapFromJSON: <V>(src: SerializedTrieMap<V>) => TrieMap<V>;
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