/**
 * OAuth authentication flow for registry login.
 * Opens browser for GitHub authentication, prompts user for code,
 * decodes JWT token to extract user info.
 */
export interface OAuthResult {
    token: string;
    username: string;
    orgs: string[];
    email: string | null;
    expiresAt: string | null;
}
declare class OAuthError extends Error {
    constructor(message: string);
}
/**
 * Exact prompt string the user sees when login is awaiting the OAuth code.
 * Exported so smoke tests can wait for it on stderr without duplicating the
 * literal — keeps the test from silently breaking if the copy is reworded.
 */
export declare const LOGIN_CODE_PROMPT = "Enter the code from your browser: ";
/**
 * Prompt the user for input via the given readable stream (default: process.stdin).
 * Exported for tests; production callers omit `input` and get process.stdin.
 */
export declare function prompt(question: string, input?: NodeJS.ReadableStream): Promise<string>;
/**
 * Run the OAuth flow using copy/paste method.
 * Opens a browser for GitHub authentication. The registry displays a code
 * that the user copies and pastes back into the CLI.
 */
declare function runOAuthFlow(registryUrl: string): Promise<OAuthResult>;
export { OAuthError, runOAuthFlow };
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