import { BaseError } from 'make-error';
import { Constrained } from '../../core';
export declare class InvalidBasicAuthAsString extends BaseError {
    constructor();
}
export declare const basicAuthFromStringSymbol: unique symbol;
export type BasicAuthAsString = Constrained<typeof basicAuthFromStringSymbol, string>;
export declare function isBasicAuthAsString(input: unknown): input is BasicAuthAsString;
export declare class BasicAuth {
    readonly key: string;
    readonly secret: string;
    constructor(key: string, secret: string);
}
export declare function sanitizeBasicAuthFromString(input: unknown): BasicAuth;