}
                Object buildAll(String modelName, Project project) {
                    return new DefaultCustomModel2();
                }
            }
        """

        if (getTargetVersion() < GradleVersion.version("4.4")) {
            buildFile << """
                class CustomBuilder implements ToolingModelBuilder {
                    boolean canBuild(String modelName) {

        });
    }

    private VersionNumber findIdeaTargetVersion() {
        VersionNumber targetVersion = null;
        String targetVersionString = rootProject.getExtensions().getByType(IdeaModel.class).getTargetVersion();
        if (targetVersionString != null) {
            targetVersion = VersionNumber.parse(targetVersionString);
            if (targetVersion.equals(VersionNumber.UNKNOWN)) {

        def result = loadToolingLeanModel(modelClass, cl)
        assertHasConfigureSuccessfulLogging()
        validateOutput()
        return result
    }

    protected GradleVersion getTargetVersion() {
        GradleVersion.version(targetDist.version.baseVersion.version)
    }

    protected static String mavenCentralRepository() {
        RepoScriptBlockUtil.mavenCentralRepository()
    }

        toolingApi.requireDaemons()
        testCode()
    }

    boolean supportsEfficientClassFiltering() {
        return getTargetVersion() >= GradleVersion.version('4.7')
    }

    void launchTests(Collection<TestOperationDescriptor> testsToLaunch) {
        launchTests { TestLauncher testLauncher ->
            testLauncher.withTests(testsToLaunch)

Method <org.gradle.plugins.ide.idea.model.IdeaModel.getProject()> does not have raw return type assignable to org.gradle.api.provider.Property in (IdeaModel.java:0)
Method <org.gradle.plugins.ide.idea.model.IdeaModel.getTargetVersion()> does not have raw return type assignable to org.gradle.api.provider.Property in (IdeaModel.java:0)