import { SolanaMessageSigner, SolanaTransactionSigner } from '@solana/keychain-core';
/**
 * Create a Vault-backed signer.
 *
 * @throws {SignerError} `SIGNER_CONFIG_ERROR` when required config is missing or invalid.
 */
export declare function createVaultSigner<TAddress extends string = string>(config: VaultSignerConfig): SolanaMessageSigner<TAddress> & SolanaTransactionSigner<TAddress>;
/**
 * Configuration for creating a VaultSigner
 */
export interface VaultSignerConfig {
    /** Name of the transit key in Vault */
    keyName: string;
    /** Solana public key (base58) corresponding to the Vault key */
    publicKey: string;
    /** Optional delay in ms between concurrent signing requests to avoid rate limits (default: 0) */
    requestDelayMs?: number;
    /** Vault server address (e.g., https://vault.example.com) */
    vaultAddr: string;
    /** Vault authentication token */
    vaultToken: string;
}
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