import { type CommandHandler } from './helpers.js';
/**
 * A bearer token from --token, VIGILBASE_ONE_TOKEN or --token-stdin, checked before any request: fetch refuses
 * header values with other characters, which would read as a connection failure.
 */
export declare function validateBearerToken(token: string): string;
/** A piped token fails with the same messages as --token. Reading stops past 16 KiB, with room for a line ending. */
export declare function readTokenFromStdin(input?: NodeJS.ReadableStream): Promise<string>;
export declare const handleLogin: CommandHandler;
export declare const handleLogout: CommandHandler;
export declare const handleWhoami: CommandHandler;