import { Equality } from "./things.js";
export type AssocArray<K, V> = [K, V][];
export declare function assocArraySingleton<K, V>(key: K, value: V): AssocArray<K, V>;
export declare function assocArrayEmpty<K, V>(): AssocArray<K, V>;
export declare function assocArrayPut<K, V>(eq: Equality<K>, arr: AssocArray<K, V>, key: K, value: V): V | undefined;
export declare function assocArrayPutIfNew<K, V>(eq: Equality<K>, arr: AssocArray<K, V>, key: K, value: () => V): V;
export declare function assocArrayGet<K, V>(eq: Equality<K>, arr: AssocArray<K, V>, key: K): V | undefined;
export declare function assocArrayHas<K, V>(eq: Equality<K>, arr: AssocArray<K, V>, key: K): boolean;
export declare function assocArrayRemove<K, V>(eq: Equality<K>, arr: AssocArray<K, V>, key: K): V | undefined;