import { EvmAgentKit } from "../../agent";
import { Address } from "viem";
/**
 * Get the balance of ETH or an ERC20 token for the agent's wallet
 * @param agent - EvmAgentKit instance
 * @param token_address - Optional ERC20 token address. If not provided, returns ETH balance
 * @returns Promise resolving to the balance as a number (in UI units)
 */
export declare function get_erc20_balance(agent: EvmAgentKit, token_address?: Address): Promise<number>;
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