import type { LoginResponse, SessionEnvelopeResponse } from './types.js';
export type SupportedShell = 'posix' | 'powershell' | 'cmd';
/**
 * Applies side effects after a successful CLI login, such as updating the
 * process environment with the latest token. Returns true when the token was
 * written to the environment.
 */
export declare function applyLoginEnvironmentToken(response: LoginResponse): boolean;
export declare function applySessionEnvironmentId(response: SessionEnvelopeResponse): boolean;
export declare function clearSessionEnvironmentId(sessionId?: string): boolean;
export declare function formatEnvExport(variable: string, value: string, shell?: SupportedShell): string;