import { Branch, Path, Failure } from './struct-error';
/**
 * Superstruct ships by default with an unopinionated set of scalar types that
 * express all of the data types that are built-in to JavaScript.
 */
export declare const Types: {
    /**
     * Matches any value other than `undefined`.
     *
     * ```js
     * 'anything'
     * true
     * ```
     */
    any: (value: any) => boolean;
    /**
     * Matches an `arguments` object.
     *
     * ```js
     * arguments
     * ```
     */
    arguments: (value: any) => boolean;
    /**
     * Matches an `Array`.
     *
     * ```js
     * [1, 2, 3]
     * ```
     */
    array: (value: any) => boolean;
    /**
     * Matches a boolean.
     *
     * ```js
     * true
     * false
     * ```
     */
    boolean: (value: any) => boolean;
    /**
     * Matches a Node.js `Buffer`.
     *
     * ```js
     * Buffer.from('string')
     * ```
     */
    buffer: (value: any) => boolean;
    /**
     * Matches a **valid** `Date` object.
     *
     * ```js
     * new Date()
     * ```
     *
     * Note: Invalid `Date` objects that equal `NaN` are not matched.
     */
    date: (value: any) => boolean;
    /**
     * Matches an error object.
     *
     * ```js
     * new Error()
     * ```
     */
    error: (value: any) => boolean;
    /**
     * Matches a `Float32Array` object.
     */
    float32array: (value: any) => boolean;
    /**
     * Matches a `Float64Array` object.
     */
    float64array: (value: any) => boolean;
    /**
     * Matches a function.
     *
     * ```js
     * () => {}
     * function () {}
     * ```
     */
    function: (value: any) => boolean;
    /**
     * Matches a generator function.
     *
     * ```js
     * function* () {}
     * ```
     */
    generatorfunction: (value: any) => boolean;
    /**
     * Matches a `Int16Array` object.
     */
    int16array: (value: any) => boolean;
    /**
     * Matches a `Int32Array` object.
     */
    int32array: (value: any) => boolean;
    /**
     * Matches a `Int8Array` object.
     */
    int8array: (value: any) => boolean;
    /**
     * Matches a `Map` object.
     *
     * ```js
     * new Map()
     * ```
     */
    map: (value: any) => boolean;
    /**
     * Matches the `null` literal value.
     *
     * ```js
     * null
     * ```
     */
    null: (value: any) => boolean;
    /**
     * Matches a number.
     *
     * ```js
     * 42
     * ```
     */
    number: (value: any) => boolean;
    /**
     * Matches a plain object.
     *
     * ```js
     * { key: 'value' }
     * { something: true }
     * ```
     */
    object: (value: any) => boolean;
    /**
     * Matches a `Promise` object.
     *
     * ```js
     * Promise.resolve()
     * ```
     */
    promise: (value: any) => boolean;
    /**
     * Matches a regular expression object.
     *
     * ```js
     * /a-z/g
     * ```
     */
    regexp: (value: any) => boolean;
    /**
     * Matches a `Set` object.
     *
     * ```js
     * new Set()
     * ```
     */
    set: (value: any) => boolean;
    /**
     * Matches a string.
     *
     * ```js
     * 'text'
     * ```
     */
    string: (value: any) => boolean;
    /**
     * Matches a `Symbol`.
     *
     * ```js
     * Symbol()
     * ```
     */
    symbol: (value: any) => boolean;
    /**
     * Matches a `Uint16Array` object.
     */
    uint16array: (value: any) => boolean;
    /**
     * Matches a `Uint32Array` object.
     */
    uint32array: (value: any) => boolean;
    /**
     * Matches a `Uint8Array` object.
     */
    uint8array: (value: any) => boolean;
    /**
     * Matches a `Uint8ClampedArray` object.
     */
    uint8clampedarray: (value: any) => boolean;
    /**
     * Matches the `undefined` literal value.
     *
     * ```js
     * undefined
     * ```
     */
    undefined: (value: any) => boolean;
    /**
     * Matches a `WeakMap` object.
     *
     * ```js
     * new WeakMap()
     * ```
     */
    weakmap: (value: any) => boolean;
    /**
     * Matches a `WeakSet` object.
     *
     * ```js
     * new WeakSet()
     * ```
     */
    weakset: (value: any) => boolean;
};
/**
 * `Validator` functions allow developers to define their own scalar types for
 * Superstruct to validate against, and return an indication of what is invalid.
 *
 * ```js
 * import { superstruct } from 'superstruct'
 * import isEmail from 'is-email'
 *
 * const struct = superstruct({
 *   types: {
 *     email: value => isEmail(value) && value.length < 256,
 *   }
 * })
 * ```
 */
export declare type Validator = (value: any, branch: Branch, path: Path) => Partial<Failure>[] | Partial<Failure> | boolean;