export interface BurndConfig {
    licenseKey?: string;
    email?: string;
    weeklyBudgetUsd?: number;
    currency?: 'USD' | 'INR';
    exchangeRate?: number;
    webhookUrl?: string;
    alertThresholdUsd?: number;
    resendApiKey?: string;
    digestEmail?: string;
    runCount?: number;
    emailSkipCount?: number;
    emailLastSkipRun?: number;
    installId?: string;
}
/** Returns a persistent random UUID for this machine's Burnd install.
 *  Generates + stores it on first call. Never regenerates. */
export declare function getInstallId(): string;
export declare function configPath(): string;
export declare function historyPath(): string;
export declare function readConfig(): BurndConfig;
export declare function writeConfig(config: BurndConfig): void;
export declare function generateKey(email: string, monthStr: string): string;
export interface LicenseStatus {
    active: boolean;
    email?: string;
    expiresMonth?: string;
    reason?: string;
}
export declare function validateLicense(config: BurndConfig): LicenseStatus;
export declare function isProActive(): boolean;
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