/**
 * Utilities for reading and writing "complex" properties to
 * objects. For example, the property "name.first" reads the
 * "first" property on the "name" object of the target.
 *
 * @public
 * @module lang/attributes
 */
/**
 * Checks to see if an attribute exists on the target object.
 *
 * @public
 * @static
 * @param {object} target - The object to check for existence of the property.
 * @param {string|string[]} propertyNames - The property to check -- either a string with separators, or an array of strings (already split by separator).
 * @param {string=} separator - The separator (defaults to a period character).
 * @returns {boolean}
 */
export function has(target: object, propertyNames: string | string[], separator?: string | undefined): boolean;
/**
 * Returns a value from the target object. If the property doesn't exist; undefined
 * is returned.
 *
 * @public
 * @static
 * @param {object} target - The object to read from.
 * @param {string|string[]} propertyNames - The property to read -- either a string with separators, or an array of strings (already split by separator).
 * @param {string=} separator - The separator (defaults to a period character).
 * @returns {*}
 */
export function read(target: object, propertyNames: string | string[], separator?: string | undefined): any;
/**
 * Writes a value to the target object.
 *
 * @public
 * @static
 * @param {object} target - The object to write to.
 * @param {string|string[]} propertyNames - The property to write -- either a string with separators, or an array of strings (already split by separator).
 * @param {*} value - The value to assign.
 * @param {string=} separator - The separator (defaults to a period character).
 */
export function write(target: object, propertyNames: string | string[], value: any, separator?: string | undefined): void;
/**
 * Erases a property from the target object.
 *
 * @public
 * @static
 * @param {object} target - The object to erase a property from.
 * @param {string|string} propertyNames - The property to write -- either a string with separators, or an array of strings (already split by separator).
 * @param {string=} separator - The separator (defaults to a period character).
 */
export function erase(target: object, propertyNames: string | string, separator?: string | undefined): void;