/**
 * No-operation (noop).
 *
 * @param {...any} args
 */
export declare function noop(...args: any[]): void;
/**
 * Whether two values are NOT equal.
 *
 * @param valueA
 * @param valueB
 */
export declare function notEqual(valueA: unknown, valueB: unknown): boolean;
/**
 * Whether two values are equal.
 *
 * @param valueA
 * @param valueB
 */
export declare function equal(valueA: unknown, valueB: unknown): boolean;
/**
 * Checks if the given `value` is `null`.
 *
 * @param value The value to check.
 */
export declare function isNull(value: unknown): value is null;
/**
 * Checks if the given `value` is `undefined`.
 *
 * @param value - The value to check.
 */
export declare function isUndefined(value: unknown): value is undefined;
/**
 * Checks if given `value` is `null` or `undefined`.
 *
 * @param value - The value to check.
 */
export declare function isNil(value: unknown): value is null | undefined;
/**
 * Checks if the given `value` is classified as a `Object`.
 *
 * @param value - The value to check.
 */
export declare function isObject(value: any): value is object;
/**
 * Checks if the given `value` is classified as a `Number` object.
 *
 * @param value - The value to check.
 */
export declare function isNumber(value: any): value is number;
/**
 * Checks if the given `value` is classified as a `String` object.
 *
 * @param value - The value to check.
 */
export declare function isString(value: any): value is string;
/**
 * Checks if `value` is classified as a `Boolean` object.
 *
 * @param value - The value to check.
 */
export declare function isBoolean(value: any): value is boolean;
/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @param value - The value to check.
 */
export declare function isFunction(value: any): value is Function;
/**
 * Checks if the given `value` is classified as an `Array` object.
 *
 * @param value - The value to check.
 */
export declare function isArray(value: unknown): value is unknown[];