import type { KVStore } from '.';
import type { Stringifiable } from '..';
import type { Uint64 } from '../../dataStructures/uint64';
/** MMap based multimap store */
export declare class MMapKV<V = Stringifiable> implements KVStore<V> {
    #private;
    /**
     * Builds a new MultiMap file store
     * @param fileName - the path + file name without the extension
     */
    constructor(fileName?: string);
    /** @returns - the length of the map */
    get length(): number;
    /**
     * Adds a value to the list of values associated with a key
     * @param key - the key
     * @param value - the value to store
     */
    set(key: Uint64, value: V): void;
    /**
     * Gets the list of values associated with a key
     * @param key - the key
     * @returns the list of values if the map contains values for the key
     */
    get(key: Uint64): Promise<V | undefined>;
    /**
     * iterate through the values
     * @yields an iterator
     */
    values(): AsyncGenerator<V>;
    /**
     * iterate through the values
     * @returns an iterator
     */
    [Symbol.asyncIterator](): AsyncGenerator<V>;
    /** Closes the store */
    close(): void;
}
//# sourceMappingURL=mmap.d.ts.map