import org.gradle.tooling.BuildController

interface SomeToolingModel {
    String getMessage()
}

interface SomeToolingModelParameter {
    String getMessagePrefix()
    void setMessagePrefix(String value)
}

class SomeToolingModelBuildAction implements BuildAction<SomeToolingModel> {
    @Override
    SomeToolingModel execute(BuildController controller) {

            @Override
            public void execute(SomeToolingModelParameter customParameter) {
                customParameter.setMessagePrefix(parameter);
            }
        });
    }