import { PublicClient } from "viem";
import { type Address } from "viem";
import type { TokenInfo, MetaTransaction } from "./types";
export declare function erc20Transfer(params: {
    token: Address;
    to: Address;
    amount: bigint;
}): MetaTransaction;
export declare function erc20Approve(params: {
    token: Address;
    spender: Address;
    amount?: bigint;
}): MetaTransaction;
export declare function checkAllowance(chainId: number, owner: Address, token: Address, spender: Address, client?: PublicClient): Promise<bigint>;
export declare function getTokenInfo(chainId: number, address?: Address, client?: PublicClient): Promise<TokenInfo>;
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