export type ProcessEnvSnapshot = Record<string, string | undefined>;
export declare function captureProcessEnv(keys: readonly string[]): ProcessEnvSnapshot;
export declare function restoreProcessEnv(snapshot: ProcessEnvSnapshot): void;
export declare function withProcessEnv<T>(overrides: ProcessEnvSnapshot, run: () => Promise<T> | T): Promise<T>;
export declare const isDetectAsyncLeaksEnabled: boolean;