import { AsyncMapper, Mapper } from 'augmentative-iterable';
export interface MinFunction<T> {
    /**
     * Finds the numeric minimum element of the iterable using a projection. This is a resolving operation, will cause a full loop through all the elements of the iterable.<br>
     *   Example: `fluent(['anchor', 'almond', 'bound', 'alpine']).min(word => word.length)` returns *bound*, the shortest word in the iterable
     * @param mapper The function which projects the elements of the iterable into the comparable value. Falls back to the identity function if omitted.
     * @returns The minimum of the iterable's projected elements.
     */
    <R = T>(mapper?: Mapper<T, R>): T | undefined;
    /**
     * Finds the numeric minimum element of the iterable using a projection. This is a resolving operation, will cause a full loop through all the elements of the iterable.<br>
     *   Example: `fluent(['anchor', 'almond', 'bound', 'alpine']).min(word => word.length)` returns *bound*, the shortest word in the iterable
     * @param mapper The function which projects the elements of the iterable into the comparable value. Falls back to the identity function if omitted.
     * @returns The minimum of the iterable's projected elements.
     */
    <R extends keyof T>(mapper: R): T | undefined;
}
export interface AsyncMinFunction<T> {
    /**
     * Finds the numeric minimum element of the iterable using an asynchronous projection. This is a resolving operation, will cause a full loop through all the elements of the iterable.
     * @param mapper The asynchronous function which projects the elements of the iterable into the comparable value. Falls back to the identity function if omitted.
     * @returns A promise of the minimum of the iterable's projected elements.
     */
    <R = T>(mapper?: AsyncMapper<T, R>): Promise<T | undefined>;
    /**
     * Finds the numeric minimum element of the iterable using an asynchronous projection. This is a resolving operation, will cause a full loop through all the elements of the iterable.
     * @param mapper The asynchronous function which projects the elements of the iterable into the comparable value. Falls back to the identity function if omitted.
     * @returns A promise of the minimum of the iterable's projected elements.
     */
    <R extends keyof T>(mapper: R): Promise<T | undefined>;
}