import type { VercelBranchMetadataStore } from './metadata-store.js';
import { type VercelDisplayCredentials } from './metadata-schema.js';
export declare const DISPLAY_USERNAME: "devbox";
export declare const DISPLAY_CODE_LENGTH = 8;
export declare const DISPLAY_CODE_PATTERN: RegExp;
/**
 * A short pairing code, not a password.
 *
 * The display link carries this code and the proxy exchanges it for a cookie,
 * so it only has to survive being read aloud or typed once. 8 characters over a
 * 32-symbol alphabet is 40 bits, which at any plausible online guess rate is
 * out of reach, and the alphabet keeps it unambiguous. A 43-character base64url
 * secret is unusable in the pairing form, which is what it is for.
 */
export declare function generateDisplayPassword(): string;
export interface DisplayCredentialsResolution {
    credentials: VercelDisplayCredentials;
    generated: boolean;
}
export declare class DisplayCredentialsNotFoundError extends Error {
    readonly code = "display_credentials_not_found";
    constructor();
}
export declare function getDisplayCredentials(store: VercelBranchMetadataStore): Promise<DisplayCredentialsResolution>;
export declare function clearDisplayCredentialRotation(store: VercelBranchMetadataStore, credentials: VercelDisplayCredentials): Promise<void>;