import { ExtractPropertyNamesOfType } from '@mike-north/types';
/**
 * Apply a simple caching layer to a unary method
 *
 * @param target class containing the method
 * @param propertyKey name of method
 * @param _descriptor property descriptor
 * @public
 */
export declare function memoize<T, O extends object, K extends ExtractPropertyNamesOfType<O, (arg: any) => any>>(target: O, propertyKey: K, _descriptor: TypedPropertyDescriptor<T>): TypedPropertyDescriptor<T> | void;
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