export interface VaultConfig {
    address: string;
    token?: string;
    namespace?: string;
}
/**
 * Vault client for managing secrets
 */
export declare class VaultClient {
    private config;
    constructor(config: VaultConfig);
    /**
     * Check if Vault CLI is available
     */
    static isVaultAvailable(): boolean;
    /**
     * Get Vault server address from environment or config
     */
    static getDefaultAddress(): string;
    /**
     * Write a secret to Vault
     */
    writeSecret(path: string, data: Record<string, string>): void;
    /**
     * Read a secret from Vault
     */
    readSecret(path: string): Record<string, string> | null;
    /**
     * List secrets at a path
     */
    listSecrets(path: string): string[];
    /**
     * Delete a secret from Vault
     */
    deleteSecret(path: string): void;
    /**
     * Build Vault CLI command with config
     */
    private buildVaultCommand;
}
/**
 * Helper function to create a Vault client from config
 */
export declare function createVaultClient(config?: Partial<VaultConfig>): VaultClient;
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