Object | FunctionBy default, the fork-ts-checker-webpack-plugin is enabled for type checking. You can use output.disableTsChecker config to disable it.
When the value of tsChecker is of type Object, it will be deeply merged with the default configuration.
When the value of tsChecker is of type Function, the default configuration will be passed as the first argument. You can directly modify the configuration object or return an object as the final configuration.