import org.gradle.tooling.BuildAction
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) {

        file("$targetBuildName/src/main/groovy/my/MyModelParameter.groovy") << """
            package my

            interface MyModelParameter {
                String getMessagePrefix()
            }
        """.stripIndent()
    }

    private void addModelBuilderImplementation(String targetBuildName, String content) {