export declare const getEnv: (key: string) => string | undefined;
export declare const buildCommonCommandInput: (bucket: string | undefined, prefix: string, filename: string) => {
    Bucket: string | undefined;
    Key: string;
};
export declare const getHttpProxy: () => string | undefined;
export declare const getHttpsProxy: () => string | undefined;
export declare const getNoProxy: () => string | undefined;
export declare const matchesNoProxy: (subjectUrl: string, noProxy: string | undefined) => boolean;