import { type PublicClient, type WalletClient } from "viem";
import type { AppConfig } from "../config/env.js";
export type SignerKind = "celo" | "self_agent";
export interface CeloClients {
    public: PublicClient;
    wallet?: WalletClient;
    accountAddress?: `0x${string}`;
}
export declare class CeloClientFactory {
    private readonly config;
    private publicClient;
    private walletClients;
    constructor(config: AppConfig);
    getPublicClient(): PublicClient;
    /** Default signer: CELO_PRIVATE_KEY when set, otherwise SELF_AGENT_PRIVATE_KEY. */
    getDefaultSigner(): SignerKind | undefined;
    /** Non-throwing check: is this signer's private key configured? */
    hasSigner(signer: SignerKind): boolean;
    resolveSigner(signer?: SignerKind): SignerKind;
    private formatKeyErrors;
    getClients(signer?: SignerKind): CeloClients;
    /** Legacy accessor — returns CELO wallet when configured. */
    getClientsLegacy(): CeloClients;
}