class Code:
    SUCCESS = 1
    DATA_PENDING_SYNC = 2
    ADDRESS_FORMAT_ERROR = 2004
    CHAIN_NOT_SUPPORTED = 2018
    NON_CONTRACT_ADDRESS = 2020
    CONTRACT_INFO_NOT_FOUND = 2021
    DAPP_NOT_FOUND = 2026
    ABI_NOT_FOUND = 2027
    ABI_FUNCTION_UNSUPPOERT = 2028
    APP_KEY_NOT_EXIST = 4010
    SIGNATURE_EXPIRATION = 4011
    SIGNATURE_VERIFICATION_FAILURE = 4012
    FREQUENCY_OVER_LIMIT = 4029
    INVALID_TOKEN = 4022
    TOKEN_NOT_FOUND = 4023
    SERVER_ERROR = 5000
    PARAM_ERROR = 5006
