import { Address } from 'viem';
/**
 * A helper function to approve token spending for the contract
 * @param tokenAddress - The address of the token to approve
 * @param spenderAddress - The address of the contract to approve
 * @param amount - The amount to approve (in wei)
 * @returns The encoded approval data
 */
export declare const encodeApprovalData: (tokenAddress: Address, spenderAddress: Address, amount: bigint) => {
    to: `0x${string}`;
    data: `0x${string}`;
};
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