export declare const ERC20_READ_ABI: ({ constant: boolean; inputs: { name: string; type: string; }[]; name: string; outputs: { name: string; type: string; }[]; payable: boolean; stateMutability: string; type: string; anonymous?: undefined; } | { anonymous: boolean; inputs: { indexed: boolean; name: string; type: string; }[]; name: string; type: string; constant?: undefined; outputs?: undefined; payable?: undefined; stateMutability?: undefined; })[];