import { BASE64_ENCODED_TYPE } from '@contract-case/case-entities-internal';
import { AnyMatcher } from '../base';
import { AnyMatcherOrData } from '../../types';
/**
 * Transformation matcher that matches a base64 encoded version of the given string or string matcher
 *
 * WARNING: Since many strings are accidentally decodable as base64, this matcher is
 * best combined with a more restrictive string matcher (eg `StringifiedJson`).
 * @public
 */
export declare class Base64Encoded extends AnyMatcher {
    /** @internal */
    readonly '_case:matcher:type': typeof BASE64_ENCODED_TYPE;
    /** @internal */
    readonly '_case:matcher:child': AnyMatcherOrData;
    /** @internal */
    readonly '_case:matcher:resolvesTo' = "string";
    /**
     * Transformation matcher that matches a base64 encoded version of the given string or string matcher
     *
     * WARNING: Since many strings are accidentally decodable as base64, this matcher is
     * best combined with a more restrictive string matcher (eg `StringifiedJson`).
     *
     * @param child - The string or string matcher that would match the decoded string
     */
    constructor(child: AnyMatcherOrData);
    /**
     * For non-TypeScript implementations (see `AnyMatcher.toJSON`)
     *
     * @privateRemarks
     * This comment and the implementation is boilerplate on all matchers to avoid
     * outputting duplicate unimportant documentation on all matcher classes of
     * the docs. Only modify this comment or the implementation via search and replace.
     */
    toJSON(): unknown;
}
//# sourceMappingURL=Base64Encoded.d.ts.map