export declare type Target = 'client' | 'server' | 'service-worker';
export declare type Mode = 'production' | 'development' | 'staging' | 'test';
export interface Options {
    target?: Target;
    mode?: Mode;
}
export default class Env {
    target: Target;
    mode: Mode;
    constructor({ target, mode }?: Options);
    get hasProductionAssets(): boolean;
    get isClient(): boolean;
    get isServer(): boolean;
    get isBrowser(): boolean;
    get isServiceWorker(): boolean;
    get isProduction(): boolean;
    get isDevelopment(): boolean;
    get isNotDevelopment(): boolean;
    get isStaging(): boolean;
    get isTest(): boolean;
    get isCircleCI(): boolean;
    get isCI(): boolean;
    get isDevelopmentClient(): boolean;
    get isProductionClient(): void;
    get isTestClient(): boolean;
    get isDevelopmentServer(): boolean;
    get isProductionServer(): void;
    get isSimulatingProduction(): boolean;
    get isShopifyBuild(): boolean;
    get isTestServer(): boolean;
    get assetDirectory(): string | undefined;
    toString(): string;
    match<TClient, TServer, TWorker>(cases: {
        client: TClient;
        server: TServer;
        serviceWorker: TWorker;
    }): TClient | TServer | TWorker;
}
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