/**
 * A helper function to set the wallet clients for the SDK
 * @param key - The private key of the account
 * @param srcChain - The chain to create the wallet client for
 * @description This helper function configures wallet clients for the SDK using a provided private key and source chain.
 */
export declare const setWalletClients: (key: `0x${string}` | undefined, srcChain: string) => Promise<void>;
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