/**
 * Describes a complex type. Takes two pure function which are exact inverses of each other.
 * The first is the serialization function which should return something that can be serialized
 * successfully by JSON.stringify. The second is the deserialization function which returns the
 * result of deserializing the serialize returns.
 * https://fnx.js.org/docs/api/complex.html
 * @param serialize Serializes the complex value. Result is passed into JSON.stringify
 * @param deserialize Deserializes the value into the complex type.
 */
export declare const complex: {
    <ComplexType, PrimitiveType extends string | number | boolean | object>(serialize: (complexValue: ComplexType) => PrimitiveType, deserialize: (primitiveValue: PrimitiveType) => ComplexType): ComplexType;
    date: Date;
    regexp: RegExp;
};