export declare function setEnv(values: Record<string, string>): void;
export declare function getEnvValue(key: string): string | undefined;
export declare const env: {
    get(key: string, fallback?: string): string;
    number(key: string, fallback?: number): number;
    boolean(key: string, fallback?: boolean): boolean;
    json<T = unknown>(key: string, fallback?: T): T;
};