import type { Mutable } from '../inputs/Mutable.js';
/**
 * Defines an object that can be mutated.
 *
 * @since 2.0.0
 * @see Mutable
 * @see mutable$
 * @see var$
 */
export interface Mutator<in A = unknown, out D = unknown> extends Mutable<A, D> {
    /**
     * Mutates the object.
     * @param arg
     * @param signal Allows to abort an async operation.
     *
     * @since 2.0.0
     */
    mutate(this: void, arg: A, signal?: AbortSignal): D;
}
/**
 * Defines an object that can be asynchronously mutated.
 *
 * @since 2.0.0
 */
export type AsyncMutator<A = unknown, D = unknown> = Mutator<A, PromiseLike<D>>;