export interface EnvironmentBuilder {
    getEnv(): Readonly<Record<string, unknown>>;
    addEnv(name: string, value: unknown): this;
}
export declare class EnvironmentHelper {
    #private;
    getEnv(): Readonly<Record<string, unknown>>;
    addEnv(name: string, value: unknown): void;
    build(): {
        env: Record<string, unknown>;
    } | {
        env?: undefined;
    };
}