fun setupRunBinaryCompatibility(v1: File.() -> Unit, v2: File.() -> Unit): File {
        rootDir.withFile("version.txt", "1.0")

        return rootDir.withUniqueDirectory("input-build").apply {

            withSettings("""include("v1", "v2", "binary-compatibility")""")
            withBuildScript(
                """
                    import gradlebuild.identity.extension.ModuleIdentityExtension

                    plugins {

	public fun toString ()Ljava/lang/String;
	public final fun trailers (Lokhttp3/Headers;)V
	public final fun withPush (Lokhttp3/mockwebserver/PushPromise;)Lokhttp3/mockwebserver/MockResponse;
	public final fun withSettings (Lokhttp3/internal/http2/Settings;)Lokhttp3/mockwebserver/MockResponse;
	public final fun withWebSocketUpgrade (Lokhttp3/WebSocketListener;)Lokhttp3/mockwebserver/MockResponse;
}

    var pushPromises: List<PushPromise> = mockResponse.pushPromises
    pushPromises = mockResponse.pushPromises
    mockResponse = mockResponse.withSettings(Settings())
    var settings: Settings = mockResponse.settings
    settings = mockResponse.settings
    mockResponse =
      mockResponse.withWebSocketUpgrade(
        object : WebSocketListener() {
        },