export declare const APPROVE_FUNCTION_SIGNATURE = "function approve(address spender, uint256 amount) external returns (bool)";
export declare const PERMIT2_APPROVE_FUNCTION_SIGNATURE = "function approve(address token, address spender, uint160 amount, uint48 expiration)";
export declare const NFT_APPROVE_FUNCTION_SIGNATURE = "function setApprovalForAll(address operator, bool _approved) public";
export declare const NFT_APPROVE_SINGLE_FUNCTION_SIGNATURE = "function approve(address to, uint256 tokenId) public";
