| protocol UseCase { | |
| func execute() -> String | |
| } | |
| class ShowDataUseCase: UseCase { | |
| let gateway: DataGateway | |
| init(dataGateway: DataGateway) { | |
| self.gateway = dataGateway | |
| } | |
| func execute() -> String { | |
| return gateway.getData() | |
| } | |
| } |
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