/**
 * {@link Object.defineProperty} where `get` is cached after first call.
 * @author warinternal 20161128
 * @param proto Object on which to add or modify the property.
 * @param propertyName Key of the property.
 * @param get Function to compute the property value.
 * @param enumerable Is the property listed in {@link Object.keys}. (Optional: default to false)
 * @example defineCachedProperty(Creep.prototype, "bodyParts", (c) => _.countBy(c.body, part => part.type))
 */
export declare function defineCachedProperty<T, R>(proto: T, propertyName: PropertyKey, get: (it: T) => R, enumerable?: boolean): void;