## Is your feature request related to a problem? Please describe. Overall, the maintainability when implementing test code is getting worse, so I would like to gradually improve it. - Group functions that call contracts (contract_modules) into classes for different purposes. - Speed up testing - https://github.com/BoostryJP/ibet-Wallet-API/issues/1468 - (Others, if any)
Is your feature request related to a problem? Please describe.
Overall, the maintainability when implementing test code is getting worse, so I would like to gradually improve it.