/**
 * Representing a Base64-encoded string.
 *
 * For a URL-safe version, @see Base64UrlSafe module
 *
 * This module is heavily inspired by the `validator.js` module
 * [`isBase64`](https://github.com/validatorjs/validator.js/blob/master/src/lib/isBase64.js).
 *
 * @since 0.0.2
 */
import { Kind, Kind2, URIS, URIS2, HKT2 } from 'fp-ts/HKT';
import * as D from 'io-ts/Decoder';
import * as Enc from 'io-ts/Encoder';
import * as Eq_ from 'fp-ts/Eq';
import * as G from 'io-ts/Guard';
import * as TD from 'io-ts/TaskDecoder';
import * as t from 'io-ts/Type';
import * as Arb from '../internal/ArbitraryBase';
/**
 * Representing a Base64-encoded string.
 *
 * For a URL-safe version, @see Base64Url module.
 *
 * Heavily inspired by the `validator.js` module
 * [`isBase64`](https://github.com/validatorjs/validator.js/blob/master/src/lib/isBase64.js).
 *
 * @since 0.0.2
 * @category Model
 */
export declare type Base64 = string & Base64Brand;
/**
 * @since 0.0.2
 * @category Model
 */
export declare type SchemableParams<S> = HKT2<S, string, Base64>;
/**
 * @since 0.0.2
 * @category Model
 */
export declare type SchemableParams1<S extends URIS> = Kind<S, Base64>;
/**
 * @since 0.0.3
 * @category Model
 */
export declare type SchemableParams2<S extends URIS2> = Kind2<S, string, Base64>;
/**
 * @since 0.0.2
 * @category Model
 */
export declare type SchemableParams2C<S extends URIS2> = Kind2<S, unknown, Base64>;
/**
 * @since 0.0.2
 * @category Refinements
 */
export declare const isBase64: (s: string) => s is Base64;
/**
 * @since 0.0.2
 * @category Instances
 */
export declare const Decoder: SchemableParams2C<D.URI>;
/**
 * @since 0.0.2
 * @category Instances
 */
export declare const Eq: SchemableParams1<Eq_.URI>;
/**
 * @since 0.0.2
 * @category Instances
 */
export declare const Guard: SchemableParams1<G.URI>;
/**
 * @since 0.0.2
 * @category Instances
 */
export declare const TaskDecoder: SchemableParams2C<TD.URI>;
/**
 * @since 0.0.2
 * @category Instances
 */
export declare const Type: SchemableParams1<t.URI>;
/**
 * @since 0.0.3
 * @category Instances
 */
export declare const Encoder: SchemableParams2<Enc.URI>;
/**
 * @since 0.0.3
 * @category Instances
 */
export declare const Arbitrary: SchemableParams1<Arb.URI>;
//# sourceMappingURL=Base64.d.ts.map