import GRPCClient from "./GRPCClient";
import IClientSecret from "../../../interfaces/Client/IClientSecret";
/**
 * gRPC-based secrets management building block implementation.
 *
 * Provides secure access to secrets stored in external secret management systems.
 * Supports retrieving individual secrets and bulk operations for efficiency.
 *
 * Configured secret stores may include HashiCorp Vault, Azure Key Vault, AWS Secrets Manager, etc.
 *
 * @implements {IClientSecret}
 * @see {@link https://docs.dapr.io/reference/api/secrets_api/} Dapr Secrets API
 * @see {@link DaprClient.secret} for unified API
 *
 * @internal
 */
export default class GRPCClientSecret implements IClientSecret {
    /**
     * Reference to the underlying gRPC client.
     */
    client: GRPCClient;
    /**
     * Creates a gRPC secrets building block.
     *
     * @param client - The gRPC client instance
     */
    constructor(client: GRPCClient);
    /**
     * Retrieves a single secret from the secret store.
     *
     * @param secretStoreName - Name of the configured secret store
     * @param key - Key of the secret to retrieve
     * @param _metadata - Optional store-specific metadata (unused for most stores)
     *
     * @returns Promise resolving to object with secret key-value pairs
     *
     * @throws Rejects if secret store is unavailable or key does not exist
     *
     * @example
     * ```typescript
     * const secret = await client.secret.get("vault", "database-password");
     * // secret: { "database-password": "p@ssw0rd" }
     * ```
     *
     * @see {@link getSecret}
     */
    get(secretStoreName: string, key: string, _metadata?: string): Promise<object>;
    getBulk(secretStoreName: string): Promise<object>;
}