import type { SecretRefV1 } from "../config/types.js";
export type SecretEnvironment = Readonly<Record<string, string | undefined>>;
/** Resolves environment references only; it never writes or persists secrets. */
export declare class EnvSecretResolver {
    private readonly environment;
    constructor(environment?: SecretEnvironment);
    resolve(reference: SecretRefV1 | string, signal?: AbortSignal): Promise<string>;
}
export declare function isEnvironmentReference(reference: SecretRefV1 | undefined): boolean;