import type { HealthStatus, SecretProviderConfig, SecretValue } from "../../../../shared/interfaces/secret-provider.interface.js";
import { BaseSecretProvider } from "./base.provider.js";
/**
 * HashiCorp Vault secret provider
 * Fetches secrets from Vault KV v2 store
 * Requires: VAULT_ADDR and VAULT_TOKEN environment variables
 */
export declare class VaultSecretProvider extends BaseSecretProvider {
    readonly name = "vault";
    private readonly vaultToken;
    constructor();
    supports(providerType: string): boolean;
    fetch(config: SecretProviderConfig): Promise<SecretValue>;
    rotate(config: SecretProviderConfig): Promise<void>;
    healthCheck(): Promise<HealthStatus>;
}
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