block()
        }
    }

    private
    fun setupRunBinaryCompatibility(v1: File.() -> Unit, v2: File.() -> Unit): File {
        rootDir.withFile("version.txt", "9.0.0")

        return rootDir.withUniqueDirectory("input-build").apply {
            withFile(
                "gradle/libs.versions.toml",
                """
                    [libraries]

            )
        }

        // new file-facade class can be annotated with @Incubating, members must be annotated with @since
        checkBinaryCompatible(
            v2 = {
                withFile(
                    "kotlin/com/example/Source.kt",
                    """
                    @file:Incubating
                    package com.example

                    import org.gradle.api.Incubating